我在这里做错了什么？代码崩溃

Question

我真的无法找出我做错了什么！

    setInterval(function() {
        var time = document.getElementById("timer").innerHTML;
        var x = time * 1000 - 400;
        setTimeout(function() {

            
                var x2 = document.getElementById("2x-total").innerHTML;
                var x3 = document.getElementById("3x-total").innerHTML;
                if (x2 < 2 * x3) {
                    var evt = document.createEvent("MouseEvents");
                    evt.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
                    var run = document.getElementById("btn2x");
                    run.dispatchEvent(evt);
                }
            
        }, x);

    }, 7000);


function x2a() {
    document.getElementById("x2p").innerHTML = x2;
}

function x3a() {
    document.getElementById("x3p").innerHTML = x3;
}

<div id="timer">01.14</div>

<button id="btn2x" onclick="x2a()" style="display: block;">2x</button>
<button id="btn3x" onclick="x3a()" style="display: block;">3x</button>
<span id="2x-total">12000</span>
<span id="3x-total">12000</span>
<p id="x2p"></p>
<p id="x3p"></p>

代码应该在循环中运行，首先等待7秒，然后运行脚本，脚本应该搜索计时器值并等到只有400毫秒并按下正确的按钮，但它崩溃了，我能做什么？办？

Answer 1

问题是您在x2匿名方法中声明了x3和setInterval个变量。试试这个：

var x2;
var x3;
setInterval(function() {
    var time = document.getElementById("timer").innerHTML;
    var x = time * 1000 - 400;
    setTimeout(function() {


            x2 = document.getElementById("2x-total").innerHTML;
            x3 = document.getElementById("3x-total").innerHTML;
            if (x2 < 2 * x3) {
                var evt = document.createEvent("MouseEvents");
                evt.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
                var run = document.getElementById("btn2x");
                run.dispatchEvent(evt);
            }

    }, x);

}, 7000);


function x2a() {
    document.getElementById("x2p").innerHTML = x2;
}

function x3a() {
    document.getElementById("x3p").innerHTML = x3;
}

Answer 2

首先删除while（1）{}循环。