console 命令行工具 X clear

console

window.onload=function(){
   
    var oP=document.createElement("p")
    var otext=document.createTextNode("33131")
    oP.appendChild(otext)
    document.body.appendChild(oP)

     var odiv=document.createElement("div")
     odiv.innerHTML="<p>11112</p><p> 11451414</p>"
     document.body.appendChild(odiv)

    

    var input1=document.createElement("input")
    input1.id="btn"
    input1.type="button"
    input1.value="添加"
    document.body.appendChild(input1)

    var div=document.createElement("div")
    div.innerHTML='<input id="btn"type="button" value="添加"/>'
    document.body.appendChild(div)
}

<!DOCTYPE html> 
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <style type="text/css">
            
        </style>
        <script>
        
        </script>
    </head>
    <body>
    </body>
</html>