小白学Python 之函数 二

Posted 2020-09-17

#定义一个函数
def getname(name):
     print ("请叫我{}!".format(name));
     return;

def GetItem(k):
    b=0;
    for i in k:
        b=b+i;
        print (b);
    return b;


#调用
getname("小王");

k=[1,2,34,5,3,56,45,6,56,767,98];
GetItem(k);


def getfive():
    return "3","as","test";

#接收参数
a,b,x=c=getfive();
print (a+"*"+b+"*"+x);

#参数和作用域
def add_five(num):
    #num=num+7;
    num=num+"手机";
    print (num);
    return num;

k=9;
m="小明";
add_five(k);
add_five(m);
print ("新一代{}".format(m));

def main():
   print ("好好学习天天向上")

if __name__ == ‘__main__‘:
    main();

 字典

 def main():
     #字典
    dic={"name":"wangds","age":18,"address":"beijing"};

    print (dic["name"]);
     #添加字典数据
    dic[‘phone‘]="苹果";
    print (dic);
     #清理字典
    dic.pop("name");
    print (dic);



dic={"name":"wangds","age":18,"address":"beijing"};
dic1={"name":"wangds","age":18,"address":"beijing"};
dic2={"name":"wangds","age":18,"Address":"beijing"};
#包含
# print ("name" in dic)
#所有key
print (dic.keys())
#所有values
 print (dic.values())
#对比字典
 print (dic==dic1)
 print (dic==dic2)

for k in dic:
    print (k)#循环key
    print (dic[k]);#循环values