图片预览

function upImg(obj){  
    var imgFile = obj.files[0];  
    console.log(imgFile);  
    var img = new Image();  
    var fr = new FileReader();  
    fr.onload = function(){  
        var htmlStr = '<div class="upWrap">';  
        htmlStr += '<div class="fileWrap">';  
        htmlStr += '<input type="file" accept="image/gif,image/jpeg,image/jpg,image/png,image/svg" onchange="upImg(this)"/>';  
        htmlStr += '</div>';  
        htmlStr += '<div class="imgWrap upedImg"><span class="deleteImg">X</span>';  
        htmlStr += '<img src="'+fr.result+'" alt="" />';  
        htmlStr += '</div>';  
        htmlStr += '</div>';  
        $('.imgOnloadWrap').append(htmlStr);  
        obj.value = '';  
    }  
    fr.readAsDataURL(imgFile);  
}