Question

这是我的代码

import random as r

Diceroll = "Y"
while Diceroll == "Y":
    Roll = r.randrange(1,7)
    print(Roll)
    Diceroll  = input("Would you like to roll again: Y/N")
    while (Diceroll != "Y") or (Diceroll != "N"):
        Diceroll = input("Please enter either Y or N")

print("Thank you for rolling with us")

第一次打印后，它无限循环Would you like to roll again 我确信解决方案很明显，但我找不到它。

Answer 1

对于不属于angular.module('myApp', ['ngMaterial']) .config(function($mdThemingProvider, $provide) { //disable theme generation $mdThemingProvider.generateThemesOnDemand(true); $provide.value('themeProvider', $mdThemingProvider); }) .run(['themeProvider', '$mdTheming', function(themeProvider, $mdTheming) { //create new theme themeProvider.theme('default') .primaryPalette('pink') .accentPalette('orange') .backgroundPalette('yellow'); //reload the theme $mdTheming.generateTheme('default'); //optional - set the default to this new theme themeProvider.setDefaultTheme('default'); }]);或Y的输入，您需要更具约束力的条件：

或

while (Diceroll != "Y") and (Diceroll != "N"):
    ...

Answer 2

一个简单的解决方案是：

import random as r

Diceroll = "Y"
while Diceroll == "Y" and Diceroll != "N":
    Roll = r.randrange(1,7)
    print(Roll)
    Diceroll  = input("Would you like to roll again: Y/N")


print("Thank you for rolling with us")

以下是输出：

4
Would you like to roll again: Y/NY
3
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NY
4
Would you like to roll again: Y/NY
1
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NY
6
Would you like to roll again: Y/NN
Thank you for rolling with us

Answer 3

使用错误的logical operator：

，您的程序逻辑存在缺陷

逻辑AND运算符：如果两个操作数均为True，则返回True;如果至少一个操作数为False，则返回False
逻辑OR运算符：如果一个或两个操作数为True，则返回True;如果两个操作数均为False，则返回False

这就是while (Diceroll != "Y") or (Diceroll != "N")返回True并输入Y或N

的原因

我的骰子滚动或循环不起作用

3 个答案: