What is Ding Jie technical verification code generally used for?

The purpose of verification code is to verify the user's identity in order to avoid embezzlement. Used to improve account security and protect user account security. Prevent people from using robots to automatically register in batches, and constantly log in to irrigation specific registered users by using specific program violence cracking means. Because the verification code is a picture mixed with numbers or symbols, it is difficult for people to see it, and it is even more difficult for machines to recognize it.