javascript document.creat Element()document.create Text Node()apendChild()

//--------------document.createElement("div")     
var div = document.createElement("div");
div.innerText = "abc";
    
//<div>abcdiv>



//---------------document.createTextNode()        
var div = document.createElement("div");
div.appendChild(document.createTextNode("        "));//document.createTextNode()        
//<div>        div>



var style = document.createElement("style");
style.type="text/css";

var node = document.createElement("LI");            //  
  
var textnode = document.createTextNode("Water");         //        
node.appendChild(textnode);                              //      
  
document.getElementById("myList").appendChild(node);     // 
   
，id =“myList”