Question

对于与单人工作有关的任务，我必须使用JavaScript制作Rock，Paper，Scissors游戏。我们必须以变量为基础，并且必须使用while循环。

当计算机或用户赢得三场比赛时，游戏需要结束。在运行时，我在第48行发现错误，并且不知道如何解决它，也不确定如何正确实现循环。帮助将不胜感激。

＆＃13;

var cpuWins = 0;
var userWins = 0;
var totalWins=0;

while(totalWins!=5){

    var userChoice = parseInt(prompt("Enter 1 for Rock, 2 for Paper, 3 for Scissors"));
    var cpuNumber = Math.random();
    
    if (cpuNumber <= (1/3)){
       cpuChoice = "Rock";
    }
    else if (cpuNumber  <=(2/3)){
       cpuChoice = "Paper";
    }
    else{
       cpuChoice= "Scissors";
    }




    if (userChoice===1){
        if (cpuChoice==="Scissors"){
            userWins++;
        }
        else if(cpuChoice==="Paper"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }


    if else(userChoice===2){
        if (cpuChoice==="Rock"){
            userWins++;
        }
        else if{
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }

    else{
        if (cpuChoice==="Paper"){
            userWins++;
        }
        else if(cpuChoice==="Rock"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }

    totalWins++
}

＆＃13;

Answer 1

如上所述，你的else if语句只有一些小的语法错误。请参阅下面的代码：

＆＃13;

var cpuWins = 0;
var userWins = 0;
var totalWins=0;

while(totalWins!=5){

    var userChoice = parseInt(prompt("Enter 1 for Rock, 2 for Paper, 3 for Scissors"));
    var cpuNumber = Math.random();
    
    if (cpuNumber <= (1/3)){
       cpuChoice = "Rock";
    }
    else if (cpuNumber  <=(2/3)){
       cpuChoice = "Paper";
    }
    else{
       cpuChoice= "Scissors";
    }




    if (userChoice===1){
        if (cpuChoice==="Scissors"){
            userWins++;
        }
        else if(cpuChoice==="Paper"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }


    else if (userChoice===2){
        if (cpuChoice==="Rock"){
            userWins++;
        }
        else if(cpuChoice==="Scissors"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }

    else {
        if (cpuChoice==="Paper"){
            userWins++;
        }
        else if (cpuChoice==="Rock"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }

    totalWins++
}

＆＃13;

Answer 2

您遇到语法错误：

else if{

不正确，你需要在那里指定一个标准

if else

不正确，订单正确

else if

我只纠正了语法错误，你应该想出逻辑

var cpuWins = 0;
var userWins = 0;
var totalWins=0;

while(totalWins!=5){

    var userChoice = parseInt(prompt("Enter 1 for Rock, 2 for Paper, 3 for Scissors"));
    var cpuNumber = Math.random();

    if (cpuNumber <= (1/3)){
       cpuChoice = "Rock";
    }
    else if (cpuNumber  <=(2/3)){
       cpuChoice = "Paper";
    }
    else{
       cpuChoice= "Scissors";
    }




    if (userChoice===1){
        if (cpuChoice==="Scissors"){
            userWins++;
        }
        else if(cpuChoice==="Paper"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }


    else if(userChoice===2){
        if (cpuChoice==="Rock"){
            userWins++;
        }
        else if (cpuChoice ==="Scrissors"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }

    else{
        if (cpuChoice==="Paper"){
            userWins++;
        }
        else if(cpuChoice==="Rock"){
            cpuWins++;
        }
        else{
            alert("It was a tie");
        }
    }

    totalWins++
}

JavaScript Rock Paper Scissors游戏

2 个答案: