Use Base64 to encode the binary of a picture so that it can be displayed using Ajax

Sometimes we need to dynamically display the binary image on the page, such as we need to get a verification code function, then if our verification code of the picture in the background is the image of the binary, then when we need to click a button on the page to use the AJAX switch, If the binary of the picture is returned directly in the background, the picture cannot be displayed.

The direct return byte stream to the IMG tag src is OK, such as

<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" >
Transferred from: http://haohaoxuexi.iteye.com/blog/1084080
Use Base64 to encode the binary of a picture so that it can be displayed using Ajax