In terms of style, the input box of the input element should not be displayed. In this case, the input needs to be set to a transparent style, and then covered over the button element. Only then can the button be clicked to upload the image. . Set accepted to "image/*" to allow only image files to be uploaded.
function readFiles(evt){ var files=evt.target.files; if(!files){ console.log("the file is invalid"); return; } for(var i=0, file; file=files[i]; i ){ var imgele=new Image(); var thesrc=window.URL.createObjectURL(file); imgele.src=thesrc; imgele.onload=function(){ $("#showlogo ").attr("src",this.src); } } }
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