简单函数示例

1：

def sum_2(a,b):

    # a = 10
    # b = 10
    result = a + b
    print("%d+%d=%d"%(a,b,result))


num1 = int(input("xx:"))
num2 = int(input("yy:"))

sum_2(num1,num2)

运行结果：

2：

def wendu():
    wd = 22

    print("当前:%d"%wd)

#  关键是这个return

    return wd


def huashi(wd3):
    wd1 = wd3 + 3
    print("当前华氏:%d"%wd1)


wd3 = wendu()
huashi(wd3)

   3:

def wendu():
    wd = 22
    print("当前:%d"%wd)
    return wd

def huashi(wd4):
    wd1 = wd4 + 3
    print("当前华氏:%d"%wd1)

wd3 = wendu()
huashi(wd3)