筆記 - HackMD

# 筆記 # 第一週 ## 加法若要運算1+2 x=1 y=2 輸入x+y 便可算出3 ## 運算子輸入x=5 x-=3 print(x) 便會等於5-3=2 輸入X=5 X**=3 就是運算5的三次方等於125 # 第二週筆記 ## 最大值 X=max(5,10,15) print(x) 便可得出最大值15 ## 最小值 X=min(5,10,15) print(x) 便可得出最小值 ## 絕對值 x = abs(-3) print(x) x=3 ## 次方 x = pow(5,2) print(x) x=25 逗點後為次方 ## cos 輸入import math print(math.cos(30)) cos30=0.15425144988758405 ## 匯入math模組 1import math 把1.4當作參數傳入到math.ceil()函數中把math.ceil()運算的結果設定給x變數 x=math.ceil(1,4) y=math.floor(1,4) print(x)#returns 2 print(y)#returns 1 ## log打法 import math x=math.log(底數,真數) print(x) ## 課堂練習第一題 ``` import math x=math.sqrt(7) y=math.sqrt(5) a=(x-y)/(x+y) print(pow(a,3)+1/pow(a,3))=1692.0000000000002 ``` 先將y設為√5 設一個a式帶入x跟y 顯示a的三次方+a的三次方之一便可算出答案第二題 4000＜四分之五的n次方＜5000 選項答案為 36 37 38 39 利用選項帶入n五分之四等於1.25 pow表次方(底數,次方 ) ``` 36 x=pow(1.25,36) print(x)=3081.4879110195775 37 x=pow(1.25,37) print(x)=3851.8598887744715 38 x=pow(1.25,38) print(x)=4814.8248609680895 39 x=pow(1.25,38) print(x)=6018.531076210112 ``` 因38在4000和5000之間所以答案是38 第八題 ``` import math x=1/(math.sqrt(2)+1) print(pow(x,4)+2*pow(x,3)-3*pow(x,2)+5*x+1) ``` 先將x設為√2＋1分之一顯示式子將x帶入即可完成 # 第四週筆記 ## 內縮若6>3則顯示sixis greater than three ``` if 5 > 2: print("Five is greater than two!") ``` 若未內縮則無法顯示 ## 註釋 ### 忽略若在字串前加上#則會忽略掉後面的字例如要顯示Good morning 將Today is sunny作為註解 ``` #Today is sunny print("Good morning") ``` ## 變數 ### 建立變數若要顯示顯示4 Patrick，要輸入 ``` x = 4 y = "Patrick" print(x) print(y) ``` ### Casting 1.int為"整數" 2.float為"浮點數" 3.str為"字串" ``` x = str(6) y = int(7) z = float(8) print(x) print(y) print(z) ``` x=6 y=7 z=8.0 ## 指定變數內容 ### 多個變量多個值 ``` x, y, z = "a", "b", "c" print(x) print(y) print(z) x=a y=b z=c ``` ### 一個值多個變量 ``` x = y = z = "a" print(x) print(y) print(z) ``` ### 解壓集合 ``` animal = ["mouse", "cat", "dog"] x, y, z = animal print(x) print(y) print(z) ``` mouse cat dog ## 變數內容輸出若要進行x=8 y=13 運算可用兩種方法 ``` x = "8" y = "13" z = x + y print(z) ``` ``` x = 8 y = 13 print(x + y) ``` **==但字串不能加上整數==** ``` x = 8 y = "Patrick" z = x + y print(z) ``` ## 串列 ### 字串 ``` lst=[] ``` ### 切片 ``` 新增元素 lst.append() 刪除 lst.remove() 清空 lst.clear() ``` ### 字串 ### 其他 ``` 數列運算彙整： sum() 總和 len() 長度 max() 最大值 min() 最小值 sorted() 依照順序排列 ``` ### 回家作業 > 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程式碼： ``` print(sorted(lst)) ``` 程式碼： ``` print("before:",lst) lst.sort() print("result:",lst) print("after:",lst) ``` # 第五週 ## 串列 > lst.cont('字串') > 意義：此字串在串列中共出現幾次排序 lst.sort() 附加 lst.append() 移除 lst.remove() ## 迴圈 > 1. 判斷式的結尾要加冒號 > 2. 在指令的下一行記得內縮 ## 回家作業 ## 回家作業 1. 用for迴圈算出lst串列的總和 ``` lst=[60474,17966,96949,7521,93184,13290,80559,23407,32934,71592,53071,34576,73225,3462,78216,59119,30438,76030,79730,52719,98568,15524,58507,29695,72782,17540,20441,10752,10368,15180,22476,89952,55597,79926,68829,14250,32526,63262,61107,48936,610,57348,47497,81307,8367,23222,88503,28267,99952,23017,65085,47323,49821,32584,30972,9306,92592,61028,60358,39581,43770,94085,2831,98577,9931,58366,10600,40871,33713,1943,66767,9008,38609,50848,35469,15344,56239,86374,92828,55399,81438,35771,28739,24107,73219,89005,20861,92589,78616,96892,50728,45848,14244,8317,41248,36275,44338,26250,65693,20100,49674,12638,77506,79208,92274,25047,44884,26438,71968,27278,84019,75581,45024,47008,29499,94332,67852,46627,75689,38086,66675,55510,99517,60920,16406,87296,21488,18666,46501,7931,37377,94523,24889,28897,10315,82434,80519,29107,44336,59352,23395,73953,21217,19202,90315,48111,27022,92919,96696,22907,98326,75601,51744,78102,69792,36919,31270,23196,22309,569,94654,20295,37463,8919,99690,88852,90442,60094,69823,19703,64637,99867,39237,80980,74844,39017,18123,17988,18758,78634,3900,60379,55664,75615,95607,84908,56887,37708,58283,36994,71767,34062,55478,89828,69537,18160,35602,29494,30669,15612,52730,83730,36887,14528,59823,10236,58379,14673,51888,33971,48235,65681,17805,89998,74435,35827,78983,91095,57954,26058,66204,6975,97470,77037,47456,9607,69076,32617,26242,45940,94631,94257,45348,26917,3597,5704,69491,51613,67360,35126,93154,78994,99492,4162,63247,614,83821,33381,10056,34381,71705,74457,88928,50610,78013,41957,21557,82585,30466,39203,51609,88352,2244,34762,45872,91011,17088,6790,67257,26855,48072,48567,64293,40010,91290,3476,97079,6450,82581,91910,15534,61864,21908,65746,39500,82936,63954,88610,43249,39700,10793,66872,79996,92659,80228,9448,36590,61013,63469,26326,45445,47884,73967,21421,41899,19425,59210,36787,46378,56889,21495,43109,39921,9629,63582,19728,59478,34575,13151,3160,80212,81673,12398,29540,46928,50948,92761,86367,18091,63985,16796,75872,29856,57874,76781,92032,77341,67395,1210,26808,97008,73529,21358,65406,57923,74493,33171,21373,39342,75194,73467,69751,7697,97136,26415,70025,67578,59263,9695,75549,3704,83015,44715,6355,94385,99832,52454,83896,95925,72639,63444,94120,53960,8562,78817,28772,19604,6988,95929,95999,14315,86760,76211,23417,57539,5172,22222,22066,86309,80030,10268,68539,88993,30638,64092,25792,25528,72472,85757,28298,58715,14301,93604,40702,67783,55978,82709,73851,75038,25531,38871,17120,19271,82070,46602,91853,6345,91049,88101,15101,11779,6937,14933,74936,86133,89392,39264,3452,67439,82525,31475,48481,35519,98495,7668,84749,50908,36193,15074,9943,32107,2454,78780,17441,73188,52262,12251,26378,88538,64900,26907,21220,42911,80689,19391,90065,52189,52659,84670,88416,49692,35312,52707,38748,94510,66022,38210,46574,30275,86702,94672,6859,40450,89265,9116,18408,43824,87379,43610,87405,57130,70461,7967,81441,86876,83236,23967,58510,72518,32186,3873,70751,75079,22076,88073,8094,4970,93711,30998,20906,76629,47752,84911,31192,92113,75978,916,56421,55344,49046,6966,906,559,97913,28989,28883,6673,60028,80743,31948,71555,84297,12306,35094,66324,86015,88965,22594,46507,50596,87151,78700,68888,60814,89127,73980,58956,90709,26727,77493,7075,16224,57058,67500,66243,39027,32113,46728,60235,55317,55742,48032,55701,97697,20978,92715,37691,66691,35911,61606,82544,96662,36618,66005,44064,83106,7252,57263,90880,86945,97148,93141,7807,2158,94743,53134,52161,44451,83301,26224,67045,41691,36845,96128,56995,96052,49665,77379,21994,12101,50781,20754,31528,14421,60652,61289,87165,43245,81328,99739,67422,62196,62054,26905,64093,37926,46451,15815,62532,32190,92588,51428,59333,80126,84301,6168,35580,41369,59051,63554,53901,40095,62267,89278,16920,97229,52355,28772,6914,3501,85171,98735,76454,96349,46418,28947,541,91375,7952,44510,93425,63661,12004,57208,7070,93393,57434,42489,83896,45284,88835,29183,80434,13657,82776,1603,41967,68000,45223,96843,48292,67776,58436,99792,31665,52951,5522,99140,76258,73437,26591,61873,71810,67653,94574,79167,30600,86199,79441,56074,67194,89844,41060,20481,9736,13111,82822,99654,84090,2789,52637,36230,77089,21133,45263,54075,20490,78147,79307,94458,21291,32662,54777,77369,20061,37415,90747,3986,86743,71143,56036,30041,87021,71480,27905,74425,91619,34398,84115,29960,93170,53829,59936,32507,18886,25900,10733,50702,67533,84141,53024,79655,83924,14916,93701,24564,84376,1008,6671,33780,62350,68628,70665,12685,9513,24293,41579,56848,57664,82633,35302,46170,12039,25451,52995,68637,32448,21123,18192,60572,75160,36053,56135,66903,26351,50447,52485,43290,45181,46527,17594,64269,20066,32353,73597,85298,1735,37705,93019,93115,99872,23406,41006,26152,73624,88968,44229,11071,22834,40419,37824,19242,30767,37724,34603,44863,53402,14986,84614,22704,55032,7696,79197,90976,54602,17729,72995,88492,53301,77950,19428,29406,90649,29720,43448,17250,29641,87767,37312,78671,52406,59912,98235,97169,14969,35170,56749,71954,6300,66,74337,80048,86325,43251,60685,35196,81393,55588,29910,74193,62810,89124,51834,35790,71976,29880,33740,50152,53503,70096,37842,39555,42783,85955,66714,89907,58554,46412,35883,79642,39000,7557,90735,32707,67678,94646,71467,98581,60029,46083,20384,54084,61437,93525,29061,74883,69115,48006,72679,84083,80011,91330,93250,56278,72601,89269,78193,80427,70237,37724,60329,77822,97563,34200,10799,45878,53492,13908,21883,11098,92929,33389,5176,38927,53380,23667,57248,75461,96729,41616,23908,73188,47394,83216,15678,14966,89285,78562,18500,65491,15701,36043,29544,90224,55044,2805,55240,4076,62952,59260,35103,73696,72740,27671,56186,81530,54220,78740,18390,1788,65513,20311,25507,94132,85910,72418,32787,40910,65682,73274,91053,92856,24527,59648,9922,21190,35254,19773,20016,14120,43837,97898,5071,68705,15689,77188,45124,41379,8266,59847,72765,96880,97889,42809,7592,59273,253,52574,23282,56491,24496,94267,83905,56776,99059,5045,47520,60227,14569,71282,91760,99493,78543,96843,83285,33663,52042,44303,58556,11784] b=0 for x in lst: print(f'x={x}') b=b+x print(f'b={b}') print(b) ``` 2. 用for迴圈找出lst串列中最大的值 ``` lst=[60474,17966,96949,7521,93184,13290,80559,23407,32934,71592,53071,34576,73225,3462,78216,59119,30438,76030,79730,52719,98568,15524,58507,29695,72782,17540,20441,10752,10368,15180,22476,89952,55597,79926,68829,14250,32526,63262,61107,48936,610,57348,47497,81307,8367,23222,88503,28267,99952,23017,65085,47323,49821,32584,30972,9306,92592,61028,60358,39581,43770,94085,2831,98577,9931,58366,10600,40871,33713,1943,66767,9008,38609,50848,35469,15344,56239,86374,92828,55399,81438,35771,28739,24107,73219,89005,20861,92589,78616,96892,50728,45848,14244,8317,41248,36275,44338,26250,65693,20100,49674,12638,77506,79208,92274,25047,44884,26438,71968,27278,84019,75581,45024,47008,29499,94332,67852,46627,75689,38086,66675,55510,99517,60920,16406,87296,21488,18666,46501,7931,37377,94523,24889,28897,10315,82434,80519,29107,44336,59352,23395,73953,21217,19202,90315,48111,27022,92919,96696,22907,98326,75601,51744,78102,69792,36919,31270,23196,22309,569,94654,20295,37463,8919,99690,88852,90442,60094,69823,19703,64637,99867,39237,80980,74844,39017,18123,17988,18758,78634,3900,60379,55664,75615,95607,84908,56887,37708,58283,36994,71767,34062,55478,89828,69537,18160,35602,29494,30669,15612,52730,83730,36887,14528,59823,10236,58379,14673,51888,33971,48235,65681,17805,89998,74435,35827,78983,91095,57954,26058,66204,6975,97470,77037,47456,9607,69076,32617,26242,45940,94631,94257,45348,26917,3597,5704,69491,51613,67360,35126,93154,78994,99492,4162,63247,614,83821,33381,10056,34381,71705,74457,88928,50610,78013,41957,21557,82585,30466,39203,51609,88352,2244,34762,45872,91011,17088,6790,67257,26855,48072,48567,64293,40010,91290,3476,97079,6450,82581,91910,15534,61864,21908,65746,39500,82936,63954,88610,43249,39700,10793,66872,79996,92659,80228,9448,36590,61013,63469,26326,45445,47884,73967,21421,41899,19425,59210,36787,46378,56889,21495,43109,39921,9629,63582,19728,59478,34575,13151,3160,80212,81673,12398,29540,46928,50948,92761,86367,18091,63985,16796,75872,29856,57874,76781,92032,77341,67395,1210,26808,97008,73529,21358,65406,57923,74493,33171,21373,39342,75194,73467,69751,7697,97136,26415,70025,67578,59263,9695,75549,3704,83015,44715,6355,94385,99832,52454,83896,95925,72639,63444,94120,53960,8562,78817,28772,19604,6988,95929,95999,14315,86760,76211,23417,57539,5172,22222,22066,86309,80030,10268,68539,88993,30638,64092,25792,25528,72472,85757,28298,58715,14301,93604,40702,67783,55978,82709,73851,75038,25531,38871,17120,19271,82070,46602,91853,6345,91049,88101,15101,11779,6937,14933,74936,86133,89392,39264,3452,67439,82525,31475,48481,35519,98495,7668,84749,50908,36193,15074,9943,32107,2454,78780,17441,73188,52262,12251,26378,88538,64900,26907,21220,42911,80689,19391,90065,52189,52659,84670,88416,49692,35312,52707,38748,94510,66022,38210,46574,30275,86702,94672,6859,40450,89265,9116,18408,43824,87379,43610,87405,57130,70461,7967,81441,86876,83236,23967,58510,72518,32186,3873,70751,75079,22076,88073,8094,4970,93711,30998,20906,76629,47752,84911,31192,92113,75978,916,56421,55344,49046,6966,906,559,97913,28989,28883,6673,60028,80743,31948,71555,84297,12306,35094,66324,86015,88965,22594,46507,50596,87151,78700,68888,60814,89127,73980,58956,90709,26727,77493,7075,16224,57058,67500,66243,39027,32113,46728,60235,55317,55742,48032,55701,97697,20978,92715,37691,66691,35911,61606,82544,96662,36618,66005,44064,83106,7252,57263,90880,86945,97148,93141,7807,2158,94743,53134,52161,44451,83301,26224,67045,41691,36845,96128,56995,96052,49665,77379,21994,12101,50781,20754,31528,14421,60652,61289,87165,43245,81328,99739,67422,62196,62054,26905,64093,37926,46451,15815,62532,32190,92588,51428,59333,80126,84301,6168,35580,41369,59051,63554,53901,40095,62267,89278,16920,97229,52355,28772,6914,3501,85171,98735,76454,96349,46418,28947,541,91375,7952,44510,93425,63661,12004,57208,7070,93393,57434,42489,83896,45284,88835,29183,80434,13657,82776,1603,41967,68000,45223,96843,48292,67776,58436,99792,31665,52951,5522,99140,76258,73437,26591,61873,71810,67653,94574,79167,30600,86199,79441,56074,67194,89844,41060,20481,9736,13111,82822,99654,84090,2789,52637,36230,77089,21133,45263,54075,20490,78147,79307,94458,21291,32662,54777,77369,20061,37415,90747,3986,86743,71143,56036,30041,87021,71480,27905,74425,91619,34398,84115,29960,93170,53829,59936,32507,18886,25900,10733,50702,67533,84141,53024,79655,83924,14916,93701,24564,84376,1008,6671,33780,62350,68628,70665,12685,9513,24293,41579,56848,57664,82633,35302,46170,12039,25451,52995,68637,32448,21123,18192,60572,75160,36053,56135,66903,26351,50447,52485,43290,45181,46527,17594,64269,20066,32353,73597,85298,1735,37705,93019,93115,99872,23406,41006,26152,73624,88968,44229,11071,22834,40419,37824,19242,30767,37724,34603,44863,53402,14986,84614,22704,55032,7696,79197,90976,54602,17729,72995,88492,53301,77950,19428,29406,90649,29720,43448,17250,29641,87767,37312,78671,52406,59912,98235,97169,14969,35170,56749,71954,6300,66,74337,80048,86325,43251,60685,35196,81393,55588,29910,74193,62810,89124,51834,35790,71976,29880,33740,50152,53503,70096,37842,39555,42783,85955,66714,89907,58554,46412,35883,79642,39000,7557,90735,32707,67678,94646,71467,98581,60029,46083,20384,54084,61437,93525,29061,74883,69115,48006,72679,84083,80011,91330,93250,56278,72601,89269,78193,80427,70237,37724,60329,77822,97563,34200,10799,45878,53492,13908,21883,11098,92929,33389,5176,38927,53380,23667,57248,75461,96729,41616,23908,73188,47394,83216,15678,14966,89285,78562,18500,65491,15701,36043,29544,90224,55044,2805,55240,4076,62952,59260,35103,73696,72740,27671,56186,81530,54220,78740,18390,1788,65513,20311,25507,94132,85910,72418,32787,40910,65682,73274,91053,92856,24527,59648,9922,21190,35254,19773,20016,14120,43837,97898,5071,68705,15689,77188,45124,41379,8266,59847,72765,96880,97889,42809,7592,59273,253,52574,23282,56491,24496,94267,83905,56776,99059,5045,47520,60227,14569,71282,91760,99493,78543,96843,83285,33663,52042,44303,58556,11784] max_value = None for num in lst: if (max_value is None or num > max_value): max_value = num print('Maximum value:', max_value) ``` Maximum value: 99952 3. 練習使用迴圈計算串列長度，並逐項比較，找出最大值 ``` lst=[60474,17966,96949,7521,93184,13290,80559,23407,32934,71592,53071,34576,73225,3462,78216,59119,30438,76030,79730,52719,98568,15524,58507,29695,72782,17540,20441,10752,10368,15180,22476,89952,55597,79926,68829,14250,32526,63262,61107,48936,610,57348,47497,81307,8367,23222,88503,28267,99952,23017,65085,47323,49821,32584,30972,9306,92592,61028,60358,39581,43770,94085,2831,98577,9931,58366,10600,40871,33713,1943,66767,9008,38609,50848,35469,15344,56239,86374,92828,55399,81438,35771,28739,24107,73219,89005,20861,92589,78616,96892,50728,45848,14244,8317,41248,36275,44338,26250,65693,20100,49674,12638,77506,79208,92274,25047,44884,26438,71968,27278,84019,75581,45024,47008,29499,94332,67852,46627,75689,38086,66675,55510,99517,60920,16406,87296,21488,18666,46501,7931,37377,94523,24889,28897,10315,82434,80519,29107,44336,59352,23395,73953,21217,19202,90315,48111,27022,92919,96696,22907,98326,75601,51744,78102,69792,36919,31270,23196,22309,569,94654,20295,37463,8919,99690,88852,90442,60094,69823,19703,64637,99867,39237,80980,74844,39017,18123,17988,18758,78634,3900,60379,55664,75615,95607,84908,56887,37708,58283,36994,71767,34062,55478,89828,69537,18160,35602,29494,30669,15612,52730,83730,36887,14528,59823,10236,58379,14673,51888,33971,48235,65681,17805,89998,74435,35827,78983,91095,57954,26058,66204,6975,97470,77037,47456,9607,69076,32617,26242,45940,94631,94257,45348,26917,3597,5704,69491,51613,67360,35126,93154,78994,99492,4162,63247,614,83821,33381,10056,34381,71705,74457,88928,50610,78013,41957,21557,82585,30466,39203,51609,88352,2244,34762,45872,91011,17088,6790,67257,26855,48072,48567,64293,40010,91290,3476,97079,6450,82581,91910,15534,61864,21908,65746,39500,82936,63954,88610,43249,39700,10793,66872,79996,92659,80228,9448,36590,61013,63469,26326,45445,47884,73967,21421,41899,19425,59210,36787,46378,56889,21495,43109,39921,9629,63582,19728,59478,34575,13151,3160,80212,81673,12398,29540,46928,50948,92761,86367,18091,63985,16796,75872,29856,57874,76781,92032,77341,67395,1210,26808,97008,73529,21358,65406,57923,74493,33171,21373,39342,75194,73467,69751,7697,97136,26415,70025,67578,59263,9695,75549,3704,83015,44715,6355,94385,99832,52454,83896,95925,72639,63444,94120,53960,8562,78817,28772,19604,6988,95929,95999,14315,86760,76211,23417,57539,5172,22222,22066,86309,80030,10268,68539,88993,30638,64092,25792,25528,72472,85757,28298,58715,14301,93604,40702,67783,55978,82709,73851,75038,25531,38871,17120,19271,82070,46602,91853,6345,91049,88101,15101,11779,6937,14933,74936,86133,89392,39264,3452,67439,82525,31475,48481,35519,98495,7668,84749,50908,36193,15074,9943,32107,2454,78780,17441,73188,52262,12251,26378,88538,64900,26907,21220,42911,80689,19391,90065,52189,52659,84670,88416,49692,35312,52707,38748,94510,66022,38210,46574,30275,86702,94672,6859,40450,89265,9116,18408,43824,87379,43610,87405,57130,70461,7967,81441,86876,83236,23967,58510,72518,32186,3873,70751,75079,22076,88073,8094,4970,93711,30998,20906,76629,47752,84911,31192,92113,75978,916,56421,55344,49046,6966,906,559,97913,28989,28883,6673,60028,80743,31948,71555,84297,12306,35094,66324,86015,88965,22594,46507,50596,87151,78700,68888,60814,89127,73980,58956,90709,26727,77493,7075,16224,57058,67500,66243,39027,32113,46728,60235,55317,55742,48032,55701,97697,20978,92715,37691,66691,35911,61606,82544,96662,36618,66005,44064,83106,7252,57263,90880,86945,97148,93141,7807,2158,94743,53134,52161,44451,83301,26224,67045,41691,36845,96128,56995,96052,49665,77379,21994,12101,50781,20754,31528,14421,60652,61289,87165,43245,81328,99739,67422,62196,62054,26905,64093,37926,46451,15815,62532,32190,92588,51428,59333,80126,84301,6168,35580,41369,59051,63554,53901,40095,62267,89278,16920,97229,52355,28772,6914,3501,85171,98735,76454,96349,46418,28947,541,91375,7952,44510,93425,63661,12004,57208,7070,93393,57434,42489,83896,45284,88835,29183,80434,13657,82776,1603,41967,68000,45223,96843,48292,67776,58436,99792,31665,52951,5522,99140,76258,73437,26591,61873,71810,67653,94574,79167,30600,86199,79441,56074,67194,89844,41060,20481,9736,13111,82822,99654,84090,2789,52637,36230,77089,21133,45263,54075,20490,78147,79307,94458,21291,32662,54777,77369,20061,37415,90747,3986,86743,71143,56036,30041,87021,71480,27905,74425,91619,34398,84115,29960,93170,53829,59936,32507,18886,25900,10733,50702,67533,84141,53024,79655,83924,14916,93701,24564,84376,1008,6671,33780,62350,68628,70665,12685,9513,24293,41579,56848,57664,82633,35302,46170,12039,25451,52995,68637,32448,21123,18192,60572,75160,36053,56135,66903,26351,50447,52485,43290,45181,46527,17594,64269,20066,32353,73597,85298,1735,37705,93019,93115,99872,23406,41006,26152,73624,88968,44229,11071,22834,40419,37824,19242,30767,37724,34603,44863,53402,14986,84614,22704,55032,7696,79197,90976,54602,17729,72995,88492,53301,77950,19428,29406,90649,29720,43448,17250,29641,87767,37312,78671,52406,59912,98235,97169,14969,35170,56749,71954,6300,66,74337,80048,86325,43251,60685,35196,81393,55588,29910,74193,62810,89124,51834,35790,71976,29880,33740,50152,53503,70096,37842,39555,42783,85955,66714,89907,58554,46412,35883,79642,39000,7557,90735,32707,67678,94646,71467,98581,60029,46083,20384,54084,61437,93525,29061,74883,69115,48006,72679,84083,80011,91330,93250,56278,72601,89269,78193,80427,70237,37724,60329,77822,97563,34200,10799,45878,53492,13908,21883,11098,92929,33389,5176,38927,53380,23667,57248,75461,96729,41616,23908,73188,47394,83216,15678,14966,89285,78562,18500,65491,15701,36043,29544,90224,55044,2805,55240,4076,62952,59260,35103,73696,72740,27671,56186,81530,54220,78740,18390,1788,65513,20311,25507,94132,85910,72418,32787,40910,65682,73274,91053,92856,24527,59648,9922,21190,35254,19773,20016,14120,43837,97898,5071,68705,15689,77188,45124,41379,8266,59847,72765,96880,97889,42809,7592,59273,253,52574,23282,56491,24496,94267,83905,56776,99059,5045,47520,60227,14569,71282,91760,99493,78543,96843,83285,33663,52042,44303,58556,11784] lenth=0 for i in lst: lenth+=1 print('長度',lenth) max_value=None for num in lst: if (max_value is None or num > max_value): max_value = num print('Maximum value:', max_value) ``` 長度 1000 Maximum value: 99952 # 第六週 ## 追蹤變數課堂練習 ![](https://i.imgur.com/gX0l6Z2.png) ![](https://i.imgur.com/8P1wkP0.png) ## 題目練習 #### 第一題 ![](https://i.imgur.com/ebgNZLP.png) ![](https://i.imgur.com/txMjGs1.png) #### 第二題 ![](https://i.imgur.com/utlyRKt.png) ![](https://i.imgur.com/ytONvgN.png) #### 第三題 ![](https://i.imgur.com/VmCEDEv.png) ![](https://i.imgur.com/MoNEokt.png) #### 第四題 ![](https://i.imgur.com/gbnsrWB.png) ![](https://i.imgur.com/OW9bsdN.png) #### 第五題 ![](https://i.imgur.com/oIGwfJW.png) ![](https://i.imgur.com/illigGT.png) #### 第六題 ![](https://i.imgur.com/utqaC9o.png) ![](https://i.imgur.com/ttkkmOg.png) # 第七週 ## 串列畫圖 ``` #使用畫圖套件 matplotlib.pyplot import matplotlib.pyplot as plt a=[1,2,3,4,5] b=[1,2,3,4,5] plt.scatter(x=a,y=b,s=5) plt.axis('square') plt.xlim(0,10) plt.ylim(0,10) print(f'我的圖形') plt.show() ``` ## 字典可透過key找value ``` dic={'pineapple':3, 'grape':6} print( dic['grpae'] ) ``` ==**亦可透過value找key==** ``` dic={6:30, 7:35} print( dic[6] ) 30 ``` ![](https://i.imgur.com/eTnRBIr.png) ### 走訪鍵 ``` for x in dict: print(x) ``` ### 走訪值 ``` for x in dict.values(): print(x) ``` ### 走訪配對 ``` for x, y in dict.items(): print(x, y) ``` ## 作業 ### 1. 用迴圈找出"麥禮仁"的學號 ``` def get_key(x): for key,value in dict.items(): if x == value: return key print(get_key("麥禮仁")) ``` ![](https://i.imgur.com/RCbM3a4.png) ### 2. 用迴圈找出所有"陳"姓同學的學號與姓名 ``` for x,y in dict.items(): if"陳" in y : print(x,y) ``` ![](https://i.imgur.com/jzrqgHh.png) ### 3. 全班同學有那幾個姓氏?同學姓是否有重複的? ``` List = [] for key in dict: if dict[key][0] not in List: List.append(dict[key][0]) print(*List) for y in dict: if dict[y][0] in List: print("有重複") return main() ``` ![](https://i.imgur.com/CotSsDh.png) ### 4. 歡迎某某某同學參加我們的營隊活動 ``` print( f'歡迎 {dict["110211036"]} 同學參加我們的營隊活動') ``` ![](https://i.imgur.com/d0KFmlC.png) ### 5. 找出所有姓氏出現的次數 ``` name_list=[] for values in dict.values(): name_list.append(values[0]) name_set=set(name_list) for i in name_set: print(i,"出現"+str(name_list.count(i))+"次") ``` ![](https://i.imgur.com/l4TO8y7.png) # 第九週 ### 手工掛載雲端硬碟 ![](https://i.imgur.com/Ll0Qi0d.png) ### 寫入在雲端硬碟中的 **___TestData** 資料夾中寫入(w) **001_Hello.txt** 文字檔 ![](https://i.imgur.com/Y4dEUTH.png) ### 讀取讀取雲端硬碟內的檔案 ![](https://i.imgur.com/UF9fuau.png) ### 刪除透過os模組檢查檔案存不存在，若存在即刪除雲端硬碟內的檔案，若不存在即顯示檔案不存在 ![](https://i.imgur.com/NqvWe1a.png) ### 顯示雲端硬碟目錄內容透過os模組顯示雲端硬碟 **___TestData** 資料夾中的目錄內容 ![](https://i.imgur.com/bR5e7Vi.png) ### 讀取雲端硬碟中的excel檔透過 Pandas DataFrame 讀取 **___TestData** 中的Excel檔 ![](https://i.imgur.com/vQaXkxD.png) ### 用Pandas將字典內容製作成表格 ![](https://i.imgur.com/73a8MML.png) ### 用Pandas將陣列內容製作成表格 ![](https://i.imgur.com/DQyrqoj.png) # **作業** 1. 橫著印出學號、體重、身高 ![](https://i.imgur.com/pm9EuqN.png) 2. 把15個元素印出來(利用雙迴圈) ![](https://i.imgur.com/i4gd9d6.png) # **Pandas DataFrame** 可以用來處理雙維度或多欄位的資料，例如Excel表格 ### 建立Pandas DataFrame ``` My = pd.DataFrame() #建立Pandas DataFrame物件，括號內可以放入字典或陣列資料 ``` ``` import pandas as pd #導入Pandas，用pd表示pandas grades = { "name": ["Mike", "Sherry", "Cindy", "John"], "math": [80, 75, 93, 86], "chinese": [63, 90, 85, 70] } df = pd.DataFrame(grades) #用表格呈現grades字典，並指定給df df #呈現df ``` ![](https://i.imgur.com/ZUdRDKL.png) ``` df.index = ["s1", "s2", "s3", "s4"] #自訂索引值 df.columns = ["student_name", "math_score", "chinese_score"] #自訂欄位名稱 ``` ### 取得Pandas DataFrame資料 * #### head() 取得最*前面* 的n筆資料，並且會回傳一個新的Pandas DataFrame資料集 ``` import pandas as pd grades = { "name": ["Mike", "Sherry", "Cindy", "John"], "math": [80, 75, 93, 86], "chinese": [63, 90, 85, 70] } df = pd.DataFrame(grades) print("原來的df") print(df) #印出grades表格 print("=================================") #分隔線 new_df = df.head(2) #取grades最前面的兩筆資料，並指定給new_df print("只取最前面兩筆資料的df") print(new_df) ``` ![](https://i.imgur.com/JXQnDt6.png) --- * #### tail() 取得最*後面* 的n筆資料，並且會回傳一個新的Pandas DataFrame資料集 ``` import pandas as pd grades = { "name": ["Mike", "Sherry", "Cindy", "John"], "math": [80, 75, 93, 86], "chinese": [63, 90, 85, 70] } df = pd.DataFrame(grades) print("原來的df") print(df) print("=================================") new_df = df.tail(3) #取grades最後面的三筆資料，並指定給new_df print("只取最後面三筆資料的df") print(new_df) ``` # 第十一週 ## 期中考檢討 https://colab.research.google.com/drive/14JVxLYE6ndI8nKb84sCY9xa7ohYoM7MN?usp=sharing # 第十二週 ### 直方圖 ![](https://i.imgur.com/ZH3FtFU.png) ![](https://i.imgur.com/NWser9H.png) ![](https://i.imgur.com/vk29qWy.png) > 由上圖可看出程式碼中range(x,y,z)的意義分別為： > x = 從 x 開始產生的整數，預設是 0 > y = 產生的整數到 y 結束(不包含 y) > z = 每一步長度的間距 ### 格式化的字串 ![](https://i.imgur.com/bFdNQCM.png) # 第十三週 ### 利用Excel做出羅倫茲曲線 ![](https://i.imgur.com/E1cOWvb.png) 下午上課的作業：將NBA球員的收入做成羅倫茲曲線 ![](https://i.imgur.com/IBrc5d8.png) # 第十四週 ## 上課內容 ### 函數將某一段程式碼設為函數，需要用到那段程式碼時就可以透過此函數返回數據 ![](https://i.imgur.com/SdZTJ8I.png) #### 範例一將上面程式碼設定為函數並命名為 my_function 當輸入這個函數時就可以直接算出答案 ![](https://i.imgur.com/9Kyxg6a.png) #### 範例二在函數內輸入一個參數 n 可透過指定參數數值改變函數內容 ![](https://i.imgur.com/YrjHCjP.png) #### 範例三可同時輸入多個參數 ![](https://i.imgur.com/j0ddfnB.png) #### 範例四宣告一個函數名稱，並代入參數 ![](https://i.imgur.com/EeNZ1IU.png) 代入兩個參數 ![](https://i.imgur.com/uJi7aYP.png) #### 範例五有兩種代入函數的方式 1. 在參數位置代入數字 2. 直接指定參數數字 ![](https://i.imgur.com/Sq8vyih.png) ### 練習透過函數計算出m,m+1,m+2.....,+n的總和 ![](https://i.imgur.com/ZEn9XgU.png) 建立一個函數，函數傳入三個參數，回傳一個值 ![](https://i.imgur.com/0CfxqE9.png)