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How html5 reads local files

Shulou Source: shulou.com Published: 2022-06-01 10:43:23 10月05日 Update

This article is about how html5 reads local files. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The structure style of html is as follows:

Add Picture

In terms of style, the input box of the input element should not be displayed. At this time, you need to set the input to a transparent style, and then cover it over the button element before you can click the button to upload the picture. If you set the accepted setting to "image / *", only picture files are allowed to upload. Css style

As follows

.addpic {

Position:relative

Margin-left:100px

Width: 95 pixels

Height: 30 pixels

}

.addlogo {

Background: no repetitive scrolling 0 0 rgba (0meme 0re0j0p0pl 0)

Cursor: pointer

Font-size:30px

Opacity: 0

Location: absolutely

Correct: 0

Maximum: 0

Z index: 10

}

Js code

Function readFiles (evt) {

Var files = evt.target.files

If (! Files) {

Console.log ("File compromised")

Return

}

For (var I = 0 files 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)

}

}

}

$(document) .ready (function () {

$("# logoimg") Change (function (e) {

ReadFiles (e)

})

})

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