The verification code technology is used to produce an image made up of random mathematical number of signs, so as to prevent the net users from using robots to automatically register, logon and paste junk info.
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释义
摘要验证码技术是产生由随机数学或符号组成的图片,借此防止用户在网络上用机器人自动注册、登录和灌水。
把海词放在桌面上,查词最方便
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