python教學
count 可以用來檢測字串中出現多少次
sen = "apple banana apple banana grape watermelon apple grape apple apple banana apple banana grape watermelon apple grape apple apple banana apple banana grape watermelon apple grape apple"
find = input("選一個你想找水果")
print(sen.count(find))
用來取餘數的運算子
#100/6 = 16 ... 4
print(100 / 6)
print(100 % 6)
也可以用來取某一位數的數字
#取第五位
x = 97577257
print(int(x % 100000 / 10000))
奇偶辨識
num = int(input())
if num % 2 == 0:
print("It's even")
else:
print("It's odd")
num = 1
while num < 6:
print(num)
num = num + 1 #也可以寫 num += 1
break
num = 0
while 1:
num += 1
print(num)
if num == 8:
break
#先試試1+2+....+99+100
n = 100
a = 0
for i in range(1,n+1):
a = a + i
#a 設定成 原本的a 加上 i
print(a)
ans:5050
n = int(input())
a = 1
for i in range(1,n+1):
a = a * i
print(a)
for loop
for i in range(2,101,2):
print(i)
while loop
num = 0
while num <= 100:
num += 2
print(num)
求s=a+aa+aaa+aaaa+aa…a的值,其中a是一個數字。例如2+22+222+2222+22222(此時共有5個數相加),幾個數相加有鍵盤控制。
內容: 很久很久以前,有一個國家叫做「正值國」,這個國家的人做什麼事都非常正直,做人坦蕩蕩。也因此,國家平安和樂、生活富足。
Mar 18, 2025https://github.com/tolgaatam/ColabTurtle
Mar 18, 2025list_a = list(range(1,20,2)) print(list_a) print(list_a[5]) list_a = [1,3,5,7,9,11,13,15,17,19] print(list_a) => [1,3,5,7,9,11,13,15,17,19]
Nov 6, 2022串列
Nov 6, 2022or
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