python学习笔记（二十三）-- 参数化替换

def username():
    return "testtest"
def passwd():
    return "123456"

#方法字典
fun_map = {
    "username":username,
    "password":passwd
}

s = "<username>,<password>"#需要替换的字符串

for k,func in fun_map.items():
    result = func()#把方法名加上（）变成可执行
    s = s.replace(k,result)

print(s)#<testtest>,<123456>