for循环

<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction()">点击这里</button>
<p id="demo"></p>

<script>
function myFunction()
{
var x;
var txt="";
var person={fname:"dave",lname:"Gates",age:15};

for (x in person)
{
txt=txt + person[x];
}

document.getElementById("demo").innerHTML=txt;
}
</script>
</body>
</html>

 

 

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
        <script>
var myArry =[1,2,3,4];
myArry.desc ='four';
for(var value of myArry){
  console.log(value)
}
document.write(myArry);
        </script>
    </head>
    <body>
    </body>
</html>

 

 

<!DOCTYPE html>
<html>
    <head> <meta charset="UTF-8" />
        <title>Document</title>
    </head> <body>
        <script>
        var arr = [1,2,3,4,5];
        arr.forEach(function(e)
        {
           document.write(e);
        })
    </script>
</body>
</html>

posted @ 2018-11-11 14:03  尘封于世  阅读(71)  评论(0)    收藏  举报