验证码是Base64的字符串，如何显示成正常图片

初见i · 发表于 2020-3-4 21:36:39

返回的base64编码图片中有换行空格处理下在解码就可以了

enixbo · 发表于 2020-3-4 22:16:26

铭信发表于 2020-3-4 21:36
返回的base64编码图片中有换行空格处理下在解码就可以了

并不是换行的问题，你试试

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

enixbo · 发表于 2020-3-4 22:18:38

这是我取源码得到的html，二维码是可以显示的，我把字符串换成我抓包的字符串就无法显示

enixbo · 发表于 2020-3-4 22:18:57

铭信发表于 2020-3-4 21:36
返回的base64编码图片中有换行空格处理下在解码就可以了

并不行啊，你试过吗

enixbo · 发表于 2020-3-4 22:22:21

这是我取源码得到的html，字符串直接写在源码里，二维码是可以显示的，
我把字符串换成我抓包的字符串就无法显示

new 2.zip (24.33 KB, 下载次数: 5)

89391311 · 发表于 2020-3-4 23:00:46

请检查你粘贴出来的返回xx包：xx的完整性

我咋看着不完整

enixbo · 发表于 2020-3-5 00:48:34

红颜脸庞仍娇俏发表于 2020-3-4 23:29
图片框1.图片＝编码_BASE64解码 (子文本替换 (文本_取右边 (#常量1, “data:image/jpg;base64,”), “%0A ...

虽然子文本参数替换写反了，但你这个目前最靠谱，因为我也通过对比发现了
1.”换行符“替换成”%0A “
2.开头加上“data:image/jpg;base64,”
3.”AAAAAAAAAAAAA“替换成”EAAAAAAAAAAAE“

结果转换出来的文本复制到HTML里替换imgdata可以显示，
但易语言图片框就是显示不出图像，存到jpg文件里，图片文件也是无法正常查看

enixbo · 发表于 2020-3-5 00:56:22

见附件。。。。

enixbo · 发表于 2020-3-5 00:58:48

这是HTML源代码。。

enixbo · 发表于 2020-3-5 02:09:21

我已经找到办法转换成html可以识别的图片了，
但base64解码后的字节集赋值给易语言的图片框就是看不到图片，
是base64解码函数不给力吗，谁能帮我解答这个问题分就给谁

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[完成] 验证码是Base64的字符串，如何显示成正常图片