美文网首页Python四期爬虫作业
【Python爬虫】逻辑运算 if 表达式练习

【Python爬虫】逻辑运算 if 表达式练习

作者: d1b0f55d8efb | 来源:发表于2017-08-17 21:15 被阅读0次

    and: 一个为假都为假

    or:同假为假 同真为真 一个为真一个为假 输出真

    非0即为真 非真即为假

    下列表达式逻辑运算后的结果为?(尽量直接思考解答,可以用代码测试结果)
    True and True

    ture

    False and True

    false

    1 == 1 and 2 == 1

    fasle

    "test" == "test"

    ture

    1 == 1 or 2 != 1

    ture

    True and 1 == 1

    ture

    False and 0 != 0

    false

    True or 1 == 1

    ture

    "test" == "testing"

    false

    1 != 0 and 2 == 1

    false

    "test" != "testing"

    ture

    "test" == 1

    false

    not (True and False)

    ture

    not (1 == 1 and 0 != 1)

    false

    not (10 == 1 or 1000 == 1000)

    ture

    not (1 != 10 or 3 == 4)

    false

    not ("testing" == "testing" and "Zed" == "Cool Guy")

    ture

    1 == 1 and not ("testing" == 1 or 1 == 0)

    ture

    3 == 3 and not ("testing" == "testing" or "Python" == "Fun")

    false

    相关文章

      网友评论

        本文标题:【Python爬虫】逻辑运算 if 表达式练习

        本文链接:https://www.haomeiwen.com/subject/bkgnrxtx.html