函数与变量

#coding=gbk
#coding=utf-8
from pip._vendor.distlib.compat import raw_input
from builtins import int

#定义一个函数与两个形参
def  one_function(first_function,second_function):
    print("You have %s book!" % first_function)
    print("XiaoMing have %s book!" % second_function)
    print("I LOVE PYTHON")
    #"\n"代表空一行
    print(" Get a book.\n")

print("第一次传参：")
#传入实参
one_function(20, 30)

print("第二次传参：")
#定义实参
a_first_function = 6
b_second_function = 6
#a_first_function = int(raw_input()) #传入的数字转换为int类型，而不是str类型
#b_second_function = int(raw_input())#传入的数字转换为int类型，而不是str类型
one_function(a_first_function, b_second_function)

print("第三次传参：")
#传入参数first_function=1+2，second_function=4+6
one_function(1+2, 4+6)

print("第四次传参")
#读取第二次传入的参数值--->a_first_function的值+6和b_second_function的值+66
one_function(a_first_function + 6, b_second_function + 6)

执行结果如下：

第一次传参：
You have 20 book!
XiaoMing have 30 book!
I LOVE PYTHON
Get a book.

第二次传参：
You have 6 book!
XiaoMing have 6 book!
I LOVE PYTHON
Get a book.

第三次传参：
You have 3 book!
XiaoMing have 10 book!
I LOVE PYTHON
Get a book.

第四次传参
You have 12 book!
XiaoMing have 12 book!
I LOVE PYTHON
Get a book.