Uploadify is a file upload plug-in based on Jquery. Its features are summarized as follows: it supports single-file or multi-file upload and controls the number of concurrently uploaded files. on the server side, it supports the use of various languages, such as PHP, NET, java & hellip; Uploadify is a file upload plug-in based on Jquery. Its features are summarized as follows: it supports single-file or multi-File Upload, and controls the number of concurrently uploaded files. on the server side, it supports the use of various languages, such as PHP ,. NET, Java ...... You can use parameters to configure the type and size of the uploaded file. You can use parameters to configure whether to select a file and then automatically upload the file. You can control the callback function (onSelect, onCancel…) in each step ......) Use interface parameters and CSS to control the appearance code: