First, the refresh problem on the page. The verification code of the login page will change with each refresh. If you are prompted that the verification code is wrong, the system will change the verification code. Is this a possible page or a previous verification code? In other words, you will not enter the same registration code twice. Just re-enter a new verification code after seeing the verification code change. Second, the problem of full angle/half angle of input method The number of full angle/half angle inputs of input method is different, that is, the number of full angle 1234 and the number of half angle 1234 are different. Although the figures are correct, they still cannot be verified.