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layui upload如何设置before或choose return false终止上传?

layui upload如何设置before或choose return false终止上传?


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需要修改源码upload.js源码,搜索y=function(){

将后面的代码更换成

return "choose" === t ? l.choose && l.choose(g) : ((l.before && l.before(g)) === false ? '' : a.ie ? a.ie > 9 ? u() : c() : void u())

1然后就可以在upload的before函数中return false 来中断上传,代码如下:

const uploadInst = upload.render({
            elem: '#exportBtn',
            url: config.base_server,
            accept...

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