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jquery里面的循環(huán)的用法
下面提一下jQuery的each方法的幾種常用的用法
Js代碼
 var arr = [ "one", "two", "three", "four"];     
 $.each(arr, function(){     
    alert(this);     
 });     
//上面這個(gè)each輸出的結(jié)果分別為：one,two,three,four

    var arr1 = [[1, 4, 3], [4, 6, 6], [7, 20, 9]]     
$.each(arr1, function(i, item){     
   alert(item[0]);     
});     
//其實(shí)arr1為一個(gè)二維數(shù)組，item相當(dāng)于取每一個(gè)一維數(shù)組，   
//item[0]相對(duì)于取每一個(gè)一維數(shù)組里的弟一個(gè)值   
//所以上面這個(gè)each輸出分別為：1   4   7

  var obj = { one:1, two:2, three:3, four:4};     
$.each(obj, function(key, val) {     
    alert(obj[key]);           
});   
//這個(gè)each就有更厲害了，能循環(huán)每一個(gè)屬性     
//輸出結(jié)果為：1   2  3  4

 <script type="text/javascript">
    $(function(){
        var con=[
            {
                "image1":"img/1524880084962.jpg",
                "shopName":"黑花生（100g*15袋/盒）",
                "price":190,
                "markPrice":200
            },
            {
                "image1":"img/1524879960117.jpg",
                "shopName":"黑花生（100g*15袋/盒）",
                "price":190,
                "markPrice":200
            },
            {
                "image1":"img/1524879605807.jpg",
                "shopName":"黑花生（100g*15袋/盒）",
                "price":190,
                "markPrice":200
            },
            {
                "image1":"img/1524879181488.jpg",
                "shopName":"黑花生（100g*15袋/盒）",
                "price":190,
                "markPrice":200
            }
            
        ]
        var html="";
        $.each(con, function(k,v) {//這里的函數(shù)參數(shù)是鍵值對(duì)的形式，k代表鍵名，v代表值
            html+='<li class="shopBox">'+
                    '<div class="shopImg"><img src='+con[k].image1+'/></div>'+
                    '<div class="shopListName">'+con[k].shopName+'</div>'+
                    '<div class="shopPrice">'+
                        '<span class="price">￥'+con[k].price+'</span>'+
                        '<span class="marketPrice">￥'+con[k].markPrice+'</span>'+
                    '</div>'+
                '</li>'
        });
        $(".shop_box").append(html);
    })
</script>

 
<script>
 
    var a = {
        "sys_bb": [
        {
            "menu_name": "教務(wù)處",
            "menus": [
                {
                    "menu_name": "張明"
                },
                {
                    "menu_name": "王明"
                }
            ]
        },
        {
            "menu_name": "辦公室",
            "menus": [
                {
                    "menu_name": "劉處"
                },
                {
                    "menu_name": "小王"
                },
                {
                    "menu_name": "張三"
                }
            ]
        }
    ],
        "sys_cw": [
        {
            "menu_name": "財(cái)務(wù)處",
            "menus": [
                {
                    "menu_name": "王虎"
                }
            ]
        }
    ]
    };
 
    $(function () {
 
        $.each(a.sys_bb, function (i, n) {
 
            $("#Div").append(a.sys_bb[i].menu_name + "<br>");
            $.each(a.sys_bb[i].menus, function (i, n) {
 
                $("#Div").append("  " + n.menu_name + "<br>");
            });
 
        });
 
        $.each(a.sys_cw, function (i, n) {
 
            $("#Div").append(a.sys_cw[i].menu_name + "<br>");
            $.each(a.sys_cw[i].menus, function (i, n) {
 
                $("#Div").append("  " + n.menu_name + "<br>")
            });
 
        });
    });
</script>