错误原因：
Python 的 global 变量在局部函数内使用时没有声明是Global，Python 把其解释成局部变量
解决方法：
非要使用全局变量的话在函数内部要说明一下：
global loopCount
loopCount = loopCount +1
相关文章
- 01-01常见的local variable 'x' referenced before assignment问题
- 01-01PaddleSeg UnboundLocalError: local variable ‘images‘ referenced before assignment
- 01-01【python】错误：UnboundLocalError: local variable ‘XXX‘ referenced before assignment
- 01-01Python错误：UnboundLocalError: local variable 'key' referenced before assignment
- 01-01Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
- 01-01【python】UnboundLocalError: local variable 'counter' referenced before assignment
- 01-01UnboundLocalError: local variable ‘xxx‘ referenced before assignment
- 01-01local variable 'xxx' referenced before assignment
- 01-01python 使用嵌套函数报local variable xxx referenced before assignment或者 local variable XXX defined in enclosing scope
- 01-01UnboundLocalError: local variable 'range' referenced before assignment