When inputting the verification code, the verification code is Chinese characters, so you can directly input or select the corresponding Chinese characters.

CAPTCHA is the abbreviation of "fully automatic public testing of computers and people", and it is an open * * * fully automatic program to distinguish computers from people. It can prevent malicious password cracking, ticket brushing and forum flooding, and effectively prevent a hacker from constantly trying to log in to a specific registered user and using a specific program to violently crack. In fact, using verification code is a popular way for many websites now, and we have realized this function in a relatively simple way. This question can be generated and judged by computers, but only humans can answer it. Because the computer can't answer CAPTCHA's question, the user who answers the question can be considered as human.