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Python break语句详解

Jun 16, 2016 am 08:44 AM
break python

Python break语句,就像在C语言中,打破了最小封闭for或while循环。break语句用来终止循环语句,即循环条件没有False条件或者序列还没被完全递归完,也会停止执行循环语句。
break语句用在while和for循环中。如果您使用嵌套循环,break语句将停止执行最深层的循环,并开始执行下一行代码。

一、Python语言 break 语句语法

复制代码 代码如下:
break

二、逻辑流程图
Python break语句详解
三、使用实例

复制代码 代码如下:
#!/usr/bin/python

for letter in 'Python':     # First Example
   if letter == 'h':
      break
   print 'Current Letter :', letter

var = 10                    # Second Example
while var > 0:             
   print 'Current variable value :', var
   var = var -1
   if var == 5:
      break

print "Good bye!"


以上实例执行结果:
复制代码 代码如下:
Current Letter : P
Current Letter : y
Current Letter : t
Current variable value : 10
Current variable value : 9
Current variable value : 8
Current variable value : 7
Current variable value : 6
Good bye!
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