Why is the dynamic verification code wrong when querying the short message list of China Jiangsu Mobile?

1, page refresh problem, every time the page is refreshed, the login verification code will change, prompting that the verification code is wrong and the system will replace the verification code. At this point, the page is still the previous verification code, and the same verification code cannot be entered twice. Just wait until you see the new verification code and re-enter the new verification code. At this time, click on the picture with the verification code, get the verification code again, enter it again, and "publish" it again to see if it is ok.

2. The problem of full-width and half-width of input method. The full-angle and half-angle input numbers are different in the input method, that is, the full-angle number 1234 and the half-angle number 1234 are different.

3. You stay on the page for too long. Please close the page and try again.

4. The same ip requested another page of this site, which caused the verification code to change. Try to close the page before reopening.