python while语句
时间: 2023-09-22 12:12:43 浏览: 59
Python中的while语句用于重复执行一段代码,直到某个条件不满足为止。其语法如下:
```
while 条件:
# 循环体语句
```
通过判断条件是否满足,如果满足则执行循环体内的语句,然后再次判断条件是否满足,如果满足则再次执行循环体内的语句,如此循环直到条件不满足为止。
例如,下面是一个示例:
```
i = 0
while i < 3:
j = 0
while j < 3:
print('学python不是有手就行')
j += 1
print('勇敢我们,不怕python------------')
i += 1
```
上述代码会依次输出3次"学python不是有手就行",然后输出一次"勇敢我们,不怕python------------",重复执行这个过程3次。
还有一个例子,输出5次"学python的人最帅":
```
i = 1
while i <= 5:
print('学python的人最帅')
i += 1
```
上述代码通过判断i是否小于等于5,如果满足则输出"学python的人最帅",然后将i加1,直到i不满足条件为止。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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