python_54_函数调用函数
logger函数的定义要放在函数调用之前,在test1(1,2)前边,一下两种都可以
def test1(x,y): print(x,y) logger('Test1') def logger(source): print("来自于%s"%source) test1(1,2)
def logger(source): print("来自于%s"%source) def test1(x,y): print(x,y) logger('Test1') test1(1,2)