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  • python第九期学习笔记(一)

    #!/usr/bin/python3
    #_*_ coding:utf-8 _*_
    #Time:2019/10/15 9:30
    #用while循环输出1,2,3,4,5,6,8,9,10
    count=0
    while count<11:
    count+=1
    if count==7:
    pass
    else:
    print(count)

    
    
    #!/usr/bin/python3
    #_*_ coding:utf-8 _*_
    #Time:2019/10/15 9:41
    #输出1-100内的奇数
    #分析:
    #1:先输出1-100个数
    #2:判断奇数成立的条件:num%2!=0(两个奇数之间的结果相差2)
    # count=0
    # while count<101:
    # print(count)
    # count+=2

    #方法二:
    # count=0
    # while count<101:
    # if count%2==1:
    # print(count)
    # count += 1

    #方法三
    #注意:==表示比较,=表示赋值
    count=0
    while count<101:
    count += 1
    if count%2==0:
    continue
    else:
    print(count)


    
    
    #!/usr/bin/python3
    #_*_ coding:utf-8 _*_
    #Author:gaoyuxia
    #Time:2019/10/15 9:45
    #求1+2+3+4.。。。+99的和
    count=0
    sum=0
    while count<=100:
    sum+=count
    count+=1
    print(sum)

    
    
    #!/usr/bin/python3
    #_*_ coding:utf-8 _*_
    #Time:2019/10/15 10:18
    #用户登陆(三次)
    username="xiaoming"
    password="123"
    count=0

    while count<3:
    username = input("请输入用户名:")
    password = input("请输入密码:")
    if username=="xiaoming" and password=="123":
    print("登录成功")
    else:
    print("帐号密码输入错误")
    count+=1


    format格式化输出
    #!/usr/bin/python3
    #_*_ coding:utf-8 _*_
    #Time:2019/10/15 10:30
    #格式化输出
    #%s===%:占位符,s:占位符类型是string类型
    #%d====d:int类型

    name=input("请输入姓名:")
    age=input("请输入年龄:")
    hobbie=input("请输入爱好:")
    job=input("请输入工作:")
    #在此处如果想要输出%,需要添加%%
    msg="姓名:%s,年龄:%s,爱好:%s,工作:%s,学习进度为3%%" %(name,age,hobbie,job)
    print(msg)

    message='''----------info %s------
    name:%s
    age:%d
    hobbie:%s
    job:%s
    ----------end------''' %(name,name,int(age),hobbie,job)
    print(message)

    while else
    当while循环被break打断,将不会执行else,当while循环没有被break打断,将会执行else

     

     

     

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  • 原文地址:https://www.cnblogs.com/gaoyuxia/p/11675829.html
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