SyntaxError: name 'x' is parameter and global
原因是:变量不能同时作为global变量和函数之间传递的变量
https://blog.csdn.net/aiyoufyc001/article/details/117357800
def func():
     global x
     print ('x is', x)
     x = 2
     print ('Changed local x to', x)
  
 x = 50
 func()
 print ('x is still', x )这样就好了。
 
 
                     
            
        













 
                    

 
                 
                    