네이티브 JS는 흰색 블록 게임을 밟지 마세요(5)를 구현합니다.

<script>
    var main = document.getElementById(&#39;main&#39;)
    go = document.getElementById(&#39;go&#39;)
    count = document.getElementById(&#39;count&#39;);
//设置四种颜色
    cols = [&#39;#1AAB8A&#39;, &#39;#E15650&#39;, &#39;#121B39&#39;, &#39;#80A84E&#39;];
//动态创建div
    function CDiv(classname) {
        var Div = document.createElement(&#39;div&#39;)
        //生成随机数
        index = Math.floor(Math.random() * 4)
        //添加class
        Div.className = classname
        //循环创建div为块
        for (var i = 0; i < 4; i++) {
            var iDiv = document.createElement(&#39;div&#39;)
            Div.appendChild(iDiv)
        }
        if (main.children.length == 0) {
            main.appendChild(Div);
        } else {
            main.insertBefore(Div, main.children[0]);
        }
 
        Div.children[index].style.backgroundColor = cols[index];
        Div.children[index].className = "i";
    }
</script>