石头剪刀布 JavaScript 问题

Rock Paper Scissors JavaScript issue

本文关键字：问题 JavaScript 石头剪刀布      更新时间：2023-09-26

作为课程的一部分，我正在为代码学院编写一个简单的石头剪刀布脚本;无论我输入什么，我得到的每一个答案都是警报（"摇滚赢了！"）; 我做错了什么？

var choice1 = prompt("Do you choose rock, paper or scissors?");
//-------------------------------------//
var choice2 = Math.random();
if (choice2 < 0.34) {
    choice2 = "rock"
    } 
else if(choice2 <= 0.67) {
    choice2 = "paper";
    } 
else {
    choice2 = "scissors";
    } 
    console.log(choice2)
//------ possible outcomes for the computer are above this comment----------- 

compare = function(choice1,choice2){
//----------------------------------------
if(choice1 === "paper" & choice2 ==="paper"){
    alert("The result is a tie!");}
if(choice1 === "rock" & choice2 ==="rock"){
    alert("The result is a tie!");}
if(choice1 === "scissors" & choice2 ==="scissors"){
    alert("The result is a tie!");}
//-possible outcomes for a tie are above this comment------------------------------

if(choice1 === "paper" & choice2 === "rock"){
    alert("paper wins!");} 

if(choice1 === "rock" & choice2 === "paper"){
    alert("paper wins!");}
 //-possible outcomes for paper & rock are above this comment------------------------

 if(choice1 === "scissors" & choice2 === "rock"){
    alert("rock wins!");} 
if(choice1 === "rock" & choice2 === "scissors"){
    alert("rock wins!");}
//-possible outcomes for a scissors & rock are above this comment--------------------

 if(choice1 === "scissors" & choice2 === "paper"){
    alert("scissors wins!");} 
if(choice1 === "paper" & choice2 === "scissors"){
    alert("scissors wins!");}
//-possible outcomes for a scissors & paper are above this comment--------------
}//<---End of compare function--//

使用 && 表示 "and"，而不是 & 。

if (choice1 === "paper" && choice2 === "rock") {
  ...
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