learning python commonly used built-in functions (continuously updated ...)

learning python commonly used built-in functions

 

A, python commonly used built-in functions which

　　to you()

 

Second, the role of each built-in function of the specific use and

　　1, dir () Returns the current variable scope (global, local) time without parameters, a list of type and method definitions;

　　　  When the return parameter list with parameters A properties, methods, and how the parameter A object has __dir __ (), this method is invoked, if that does not contain the method does not complain, but as much as possible to collect parameter object information a

　　　  Example:　　

　　　　　　　Without parameters, respectively in the files in the global and local call in the function call dir ()

　　　　　　　　 

 

 　　　　　　　　

　　　　　　　Arguments