Python循环_for&while

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

print(x)

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for循环就是把每个元素代入变量x,执行for循环里面的代码

 # -*- coding: utf-8 -*-
 sum = 0
 for x in range(101):
     sum = sum + x
 print(sum)

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while循环，满足条件，就循环，不满足即退出

 # -*- coding: utf-8 -*-
 sum = 0
 t_times = 100
 while t_times >0 :
     sum = sum + t_times
     t_times =t_times -1
 print(sum)

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break语句，跳出循环，可以设定跳出条件

 sum = 0
 for x in range(10):
     sum = sum + x
     if sum >= 10:
         break
 print(sum)

continue语句，路过当前循环（continue以下的代码均不执行），例（计算1-100的单数相加的和）：

 #! -*-coding:utf-8 -*-

 def sum_of_odd():
     total = 0
     content = input("计算基数总和，请输入整数最大值：")
     if content.isdigit():
         t_times = int(content)
     else:
         print("请输入正确的类型！")
         return sum_of_even()

     while t_times > 0:
         if t_times % 2 == 0:
             t_times = t_times - 1
             continue
         print("相加的基数为：" + str(t_times))
         total = total + t_times
         if t_times > 0:
             t_times = t_times - 1
         else:
             pass
     print("在此范围内的基数相加和为：" + str(total))

 sum_of_odd()