JavaScript获取图片的真实尺寸大小示例

var img = $("#img_id"); // Get my img elem
var pic_real_width, pic_real_height;
$("") // Make in memory copy of image to avoid css issues
    .attr("src", $(img).attr("src"))
    .load(function() {
        pic_real_width = this.width;   // Note: $(this).width() will not
        pic_real_height = this.height; // work for in memory images.
 });

function adapt(){
var tableWidth = $("#imgTable").width(); //表格宽度
var img = new Image();
img.src =$('#imgs').attr("src") ;
var imgWidth = img.width; //图片实际宽度
if(imgWidth $('#imgs').attr("style","width: auto");
}else{
$('#imgs').attr("style","width: 100%");
}
}

css代码

获取