# <h1>松林Java05（Python）筆記2019/11/27

a.print

b.格式化輸出

c.格式化輸入
print("成績輸入系統")
id=int(input("請輸入學號: "))
eng=int(input("請輸入英文成績： "))
math=int(input("請輸入數學成績： "))
ave=(eng+math)/2
print("平均分數： %.2f"%ave)
<hr>

d.排序 if else
x=int(input("please enter x: "))
y=int(input("please enter y: "))
z=int(input("please enter z: "))
if(x>y):
if(x>z):
print("x is the biggest")
if(y>z):
print("y is middle z is the smallest")
else:
print("z is middle y is the smallest")
else:
print("z is the biggest")
print("x is middle y is the smallest")

else:
if(y>z):
print("y is the biggest")
if(x>z):
print("x is middle z is the smallest")
else:
print("z is middle x is the smallest")
else:
print("z is the biggest")
print("y is middle x is the smallest")
<hr>

e.串列 list
串列可以有整數，浮點數，字串，tuple元組，list串列切片
list串列[]
tuple元組()
dict字典{：}
集合{,}
list_name[:]切片全部
list_name[:n]從1到n
list_name[n:]從n到最後
list_name[n:n]從n到n
list_name[開始：結束：：間隔值]
index 0~5（正向） or -1~-6（逆向）