document基本操作 动态脚本-动态样式-创建表格

var html = document.documentElement;
var body = document.body;

window.onload = function() {
    //document.write("Hello world!");
}
var fragment = document.createDocumentFragment();
var ul = document.getElementById("myDiv");
var li = null;

for (var i = 0; i < 3; i++) {
    li = document.createElement("li");
    li.appendChild(document.createTextNode("Item" + (i + 1)));
    fragment.appendChild(li);
}

ul.appendChild(fragment);

//动态创建脚本
var script = document.createElement("script");
script.type = "text/javascript";
script.src = "docment.js";
document.body.appendChild(script);

//var attr = document.createAttribute("align");
//动态样式

var link = document.createElement("link");
link.rel = "stylesheet";
link.type = "text/css";
link.href = "style.css";

var head = document.getElementsByTagName("head")[0];
head.appendChild(link);

//表格
var table = document.createElement("table");
table.border = 1;
table.width = "100%";
//创建tbody
var tbody = document.createElement("tbody");
table.appendChild(tbody);
//创建行
var row1 = document.createElement("tr");
tbody.appendChild(row1);

var cell1 = document.createElement("td"); //创建列
cell1.appendChild(document.createTextNode("cell1 1.1")); //设置列文本内容
row1.appendChild(cell1); //设置列所属行

var cell2 = document.createElement("td");
cell2.appendChild(document.createTextNode("cell2 2.1"));
row1.appendChild(cell2);

document.body.appendChild(table);

//通过属性方法创建表格

var table = document.createElement("table");
table.border = 1;
table.width = "100%";

var tbody = document.createElement("tbody");
table.appendChild(body);

//创建第一行
tbody.insertRow(0);
tbody.rows[0].insertCell(0);
tbody.rows[0].cells[0].appendChild(document.createTextNode("Cell 1,1"));

tbody.rows[0].insertCell(1);
tbody.rows[0].cells[1].appendChild(document.createTextNode("Cell 2,1"));

//创建第二行
tbody.insertRow(1);
tbody.rows[1].insertCell(0);
tbody.rows[1].cells[0].appendChild(document.createTextNode("Cell 1,2"));

tbody.rows[1].insertCell(1);
tbody.rows[1].cells[1].appendChild(document.createTextNode("Cell 2,2"));

document.body.appendChild(table);