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[html] 第30天 网页上的验证码是为了解决什么问题?说说你了解的验证码种类有哪些 #106
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解决的问题:
验证码的类型:
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主要还是看防护目的,防盗号和防爆刷的手段就应该不一样。 |
其实这种方式本质上是出于对系统的保护 |
补充
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12306的验证码有得研究 |
防止机器人吧,拼图,识字 |
验证码是为了防止脚本恶意注册或者登陆,增加服务器负担和破解密码等 种类:
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U盾,密码器,动态码 |
解决的问题: |
防止机器人行为,防止黑客暴力破解方式 |
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第30天 网页上的验证码是为了解决什么问题?说说你了解的验证码种类有哪些
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