python while循环

while循环格式

while 条件:
循环体(break, continue)

例子

1 while True:
2     content = input("请输入你要喷的内容,输入Q退出")
3     if content == "Q":
4         # 退出程序 打断循环
5         break  # 直接跳出循环
6     print("你对打野说:", content)

1 count = 1  # 次数
2 while count <= 3:
3     content = input("请输入你要喷的内容")
4     print("你要对上单说:", content)
5     # 改变content
6     count = count + 1

计算1-100的和

1 sum = 0                 # sum: 0 + 1 + 2 + 3 + 4.....99 + 100
2 count = 1               # count:1, 2, 3, 4, 99, 100, 101
3 while count <= 100:
4     sum = sum + count   # 累加运算
5     count = count + 1
6 print(sum)

输出1-100所有奇数或偶数

奇数

1 num3 = 1
2 while num3 <= 100:
3     if num3 % 2 == 1:
4         print(num3)
5     num3 += 1

偶数

1 num3 = 1
2 while num3 <= 100:
3     if num3 % 2 == 0:
4         print(num3)
5     num3 += 1