var div = document.createElement("div"); Div.style.width = "100px"; Div.style.height = "100px"; Div.style.background = "red"; Div.style.color = "白色"; div.innerHTML = "Hello"; . getelementbyid(“主要”).appendChild (div); 身体< > < div id = "主" > < / div > 身体< / >

var div = document.createElement("div");
div.style.width = "100px";
div.style.height = "100px";
div.style.background = "red";
div.style.color = "white";
div.innerHTML = "Hello";

document.getElementById("main").appendChild(div);
OR
document.body.appendChild(div);

使用父引用而不是document.body。

我喜欢做的另一件事是创建一个对象，然后循环遍历对象并设置样式，因为逐个编写每个样式会很乏味。

var bookStyles = {
   color: "red",
   backgroundColor: "blue",
   height: "300px",
   width: "200px"
};

let div = document.createElement("div");

for (let style in bookStyles) {
 div.style[style] = bookStyles[style];
}

body.appendChild(div);

你可以这样做

board.style.cssText = "position:fixed;height:100px;width:100px;background:#ddd;"

document.getElementById("main").appendChild(board);

完整的可运行代码片段: var董事会; 董事会= document.createElement (" div "); 董事会。id = "主板"; board.style.cssText = "位置:固定;高度:100px;宽度:100px;背景:#ddd;" . getelementbyid(“主要”).appendChild(板); 身体< > < div id = "主" > < / div > 身体< / >

这里有一个我会使用的解决方案:

var div = '<div id="yourId" class="yourClass" yourAttribute="yourAttributeValue">blah</div>';

如果你想让属性和/或属性值基于变量:

var id = "hello";
var classAttr = "class";
var div = '<div id='+id+' '+classAttr+'="world" >Blah</div>';

然后，附加到正文:

document.getElementsByTagName("body").innerHTML = div;

容易得很。

这取决于你怎么做。纯javascript:

var div = document.createElement('div');
div.innerHTML = "my <b>new</b> skill - <large>DOM maniuplation!</large>";
// set style
div.style.color = 'red';
// better to use CSS though - just set class
div.setAttribute('class', 'myclass'); // and make sure myclass has some styles in css
document.body.appendChild(div);

使用jquery做同样的事情非常简单:

$('body')
.append('my DOM manupulation skills dont seem like a big deal when using jquery')
.css('color', 'red').addClass('myclass');

干杯!

下面是一个小例子，它使用了一些漂亮的可重用DOM实用函数:

// DOM utility functions: const ELNew = (tag, prop) => Object.assign(document.createElement(tag), prop), ELS = (sel, par) => (par ?? document).querySelectorAll(sel), EL = (sel, par) => (par ?? document).querySelector(sel); // Task: const EL_new = ELNew("div", { className: "item", textContent: "Hello, World!", onclick() { console.log(this.textContent); }, style: ` font-size: 2em; color: brown; background: gold; ` }); // Append it EL("body").append(EL_new);

此外，你还可以使用Object.assign()对元素进行样式化，如下所示:

// Add additional styles later:
Object.assign(EL_new.style, {
  color: "red",
  background: "yellow",
  fontSize: "3rem",
});