Question

我做了一个石头剪刀游戏，但window.alert不能正常工作，所以用户无法看到他们是否赢了！我该如何解决这个问题？这是我的JS：

var userChoice = prompt("Do you choose rock, paper or scissors?");
var computerChoice = Math.random();
if (computerChoice < 0.34) {
    computerChoice = "rock";
} else if(computerChoice <= 0.67) {
    computerChoice = "paper";
} else {
    computerChoice = "scissors";
} console.log("Computer: " + computerChoice);

var compare = function(choice1, choice2) {
 if(choice1 === choice2) {
    return "The result is a tie!";
      window.alert("Wait what. We tied?");
    }

    else if(choice1 === "rock") {

        if(choice2 === "scissors") {
            return "rock wins";
              window.alert("What? Why u crush my scissors :<. I guess you won!");
        }
        else {
            return "paper wins";
            window.alert("Got a present for you! Just kidding lol its a rock packed in paper. Imma throw it at you and you will die.");
        }
    }
    if(choice1 === "paper")
        if(choice2 ==="rock"){
            return "paper wins";
            window.alert("Your paper, Vs my Rock! Hah! I won!");
        }
    if(choice1 === "scissors"){
        if(choice2 ==="rock"){
            return "rock wins";
              window.alert("I just crushed your scissors fam. I won. ezpz take the L");
        }
    else{
        return "scissors wins";
          window.alert("You spooked m8? My scissors cut you in 326 pieces! >:D");
         }
    }
};
compare(userChoice,computerChoice);

其他一切正常，但它只是打印到控制台。感谢帮助

Answer 1

程序无法访问window.alert（）调用。当程序遇到return语句时，执行返回到调用函数的位置。您必须在每个return语句上方移动window.alert（）调用，以便在您希望显示警报时调用它们。

另外，使用＆＃34;窗口。＆＃34;在每个警报声明中都是可选的。

Answer 2

除了一个，回复在警报之前。返回会使您退出某个函数，其余行不会运行，请尝试将它们全部切换

Answer 3

你错过了一些

else

和一些花括号

请修改你的缩进._。

Answer 4

警报无法访问，因为在调用它们之前有一个return语句，退出该函数。你有一个缺少大括号，它需要一个额外的其他，这很容易发现一旦我正确缩进代码。

尝试：

var computerChoice = Math.random();

if (computerChoice < 0.34) {
  computerChoice = "rock";
} else if(computerChoice <= 0.67) {
  computerChoice = "paper";
} else {
  computerChoice = "scissors";
} console.log("Computer: " + computerChoice);

var compare = function(choice1, choice2) {
  if(choice1 === choice2) {
    return "The result is a tie!";
    window.alert("Wait what. We tied?");
  } else {
    if(choice1 === "rock") {
      if(choice2 === "scissors") {
        alert("What? Why u crush my scissors :<. I guess you won!");
        return "rock wins";
      } else {
        alert("Got a present for you! Just kidding lol its a rock packed in paper. Imma throw it at you and you will die.");
        return "paper wins";

      }
    }

    if(choice1 === "paper") {
      if(choice2 ==="rock") {
        alert("Your paper, Vs my Rock! Hah! I won!");
        return "paper wins";  
      }
    }

    if (choice1 === "scissors") {
      if(choice2 ==="rock"){
        alert("I just crushed your scissors fam. I won. ezpz take the L");
        return "rock wins";  
      } else {
        return "scissors wins";
      }
    }
};
compare(userChoice,computerChoice);

摇滚纸剪刀window.alert不工作

4 个答案: