H5前端开发-上传图片实时预览

h5开发与web前端|h5开发与web前端|app前端与web前端开发

html 代码

<!DOCTYPE html>
<head>
    <meta charset=”utf-8″>
    <title>web/h5前端开发</title>
    <style type=”text/css”>
        * {
            padding: 0;
            margin: 0;
        }
        .container {
            position: relative;
            width: 1000px;
            height: 600px;
            margin: 30px auto;
            box-shadow: 0 0 10px #666;
        }
        #upLoad {
            position: absolute;
            width: 150px;
            height: 100px;
            top: 50%;
            left: 50%;
            margin-left: -75px;
            margin-top: -50px;
            text-align: center;
        }
        .upLoad_btn {
            width: 150px;
            height: 60px;
            line-height: 60px;
            background-color: #26f;
            color: #fff;
            border-radius: 10px;
            cursor: pointer;
        }
        #upLoad span {
            line-height: 40px;
        }
        #img_con li {
            text-align: center;
            list-style: none;
            width: 200px;
            height: 150px;
            border: 1px solid #999;
            float: left;
            margin: 20px;
        }
        #img_con li span {
            float: left;
            width: 100%;
            height: 40px;
            line-height: 60px;
            margin-top: 110px;
            color: #333;
        }
        .upLoad {
            float: left;
            width: 200px;
            height: 150px;
            background-color: #eee;
            margin: 20px;
            font-size: 150px;
            line-height: 130px;
            color: #fff;
            text-align: center
        }
        input {
            display: none;
        }
    </style>
</head>
<body>
    <div class=”container”>
        <div id=”upLoad”>
            <label>
                <div class=”upLoad_btn”>上传图片</div>
                <span>按住ctrl可多选</span>
                <input type=”file” id=”myfile” multiple=”true” onchange=”upload(this)”>
            </label>
        </div>
        <ul id=”img_con”>
            <!–<li><span>111111111</span></li>
<li><span>111111111</span></li>
<li><span>111111111</span></li>
<label>
<div class=”upLoad” >+</div>
<input type=”file” id=”myfile” multiple=”true” onchange=”upload(this)”>
</label>–>
        </ul>
    </div>
</body>
</html>
<script src=”http://apps.bdimg.com/libs/jquery/1.6.4/jquery.js”></script>
<script type=”text/javascript”>
    function upload(obj) {
        var sum = obj.files.length;
        var str = “”;
        for (var i = 0; i < sum; i++) {
            var url = window.URL.createObjectURL(obj.files[i]);
            var name = obj.files[i].name;
            str += “<li style=’background:url(” + url + “) no-repeat center;background-size:contain’><span>” + name + “</span></li>”
        }
        str += ‘<label><div class=”upLoad” >+</div><input type=”file” id=”myfile” multiple=”true” onchange=”upload(this)”></label>’;
        $(“#upLoad”).remove();
        $(“label”).remove();
        $(“#img_con”).append(str);
    }
</script>

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