Python 局部和全局变量 Python return 语句 Python dir 函数 Python 局部和全局变量 #!/usr/bin/python total = 0; # This is global variable. # Function definition is here def sum( arg1, arg2 ): # Add both the parameters and return them." total = arg1 + arg2; # Here total is local variable. print "Inside the function local total : ", total return total; # Now you can call sum function sum( 10, 20 ); print "Outside the function global total : ", total Python return 语句 Python dir 函数