a computer program or system intended to distinguish human from machine input, typically as a way of thwarting spam and automated extraction of data from websites
(计算机的)验证码。
"early 21st cent.: acronym from
n. 验证码
The most popular such method is CAPTCHA.
最常见的一种方法是 CAPTCHA。
Figure 3 is an example of a CAPTCHA image.
图 3 是 CAPTCHA 图像的一个例子。
Are some CAPTCHA devices better than others?
是否有些CAPTCHA设备比其他设备更好?
I want users to have to fill in a captcha to comment.
我希望用户必须要回答captcha才能写注释。
The image is then presented as a CAPTCHA in the usual way.
然后这个图片以常规方式显示为验证码。
Captcha(Completely Automated Public Turing Test to Tell Computers and Humans Apart,全自动区分计算机和人类的图灵测试),最早作为Carnegie Mellon大学的一个科研项目,Yahoo!是其第一个用户。 Captcha的目的是区分计算机和人类的一种程序算法,是一种区分用户是计算机和人的计算程序,这种程序必须能生成并评价人类能很容易通过但计算机却通不过的测试。
a computer program or system intended to distinguish human from machine input, typically as a way of thwarting spam and automated extraction of data from websites
(计算机的)验证码。
"early 21st cent.: acronym from