5.Javascript语法-循环语句for循环

JavaScript循环语句

1. for循环、for/in
2. while循环、do…while

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for循环

<script>    var i=[1,2,3,4,5,6];    for(var j= 0;j<6;j++){        document.write(i[j]+"、");    }</script>

也可以把var j=0和j++拿出来

<script>    var i=[1,2,3,4,5,6];    var j= 0;    for(;j<6;){        document.write(i[j]+"、");        j++;    }</script>

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for/in

<script>    var i=[1,2,3,4,5,6];    var j;    for(j in i){        document.write(i[j]+"<br/>");    }</script>