格式：for x in xs[‘James‘,‘Lily‘,‘Candy‘]:

print(x)

——————————————————————————————————

for循環就是把每個元素代入變量x,執行for循環裏面的代碼

1 # -*- coding: utf-8 -*-
2 sum = 0
3 for x in range(101):
4     sum = sum + x
5 print(sum)

_______________________________________________________________________________

while循環，滿足條件，就循環，不滿足即退出

1 # -*- coding: utf-8 -*-
2 sum = 0
3 t_times = 100
4 while
 
 t_times >0 :
5     sum = sum + t_times
6     t_times =t_times -1
7 print(sum)

_______________________________________________________________________

break語句，跳出循環，可以設定跳出條件

1 sum = 0
2 for x in range(10):
3     sum = sum + x
4     if sum >= 10:
5         break
6 print(sum)

continue語句，路過當前循環（continue以下的代碼均不執行），例（計算1-100的單數相加的和）：

 1 #! -*-coding:utf-8 -*-
 2 
 3 def sum_of_odd():
 4     total = 0
 5     content = input("計算基數總和，請輸入整數最大值：")
 6     if content.isdigit():
 7         t_times = int(content)
 8     else:
 9         print("請輸入正確的類型！")
10         return sum_of_even()
11 
12     while t_times > 0:
13         if t_times % 2 == 0:
14             t_times = t_times - 1
15             continue
16         print("相加的基數為：" + str(t_times))
17         total = total + t_times
18         if t_times > 0:
19             t_times = t_times - 1
20         else:
21             pass
22     print("在此範圍內的基數相加和為：" + str(total))
23 
24 sum_of_odd()

Python循環_for&while