asp上传组件，可以显示进度条、可以上传大文件，可以用多种调用方式！-asp upload component that can display the progress bar, you can upload large files, you can use a variety of ways call!

六种上传模式，对比选择，方便使用，可直接插入html页面中-From the six models, comparing options, easy to use, plugs directly into html page