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Javascript: how to upload and preview images. Code _ javascript skills

Source: Internet
Author: User
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Image Upload preview: After selecting a file in the file selection box, you can see the effect of the image on the page, I have always thought that this effect cannot be achieved. Today, the src of the alphaimageloader filter is the main character in it. It specifies the background image using an absolute or relative url address. If this parameter is ignored, the filter will not work.

The Code is as follows:








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