Mobile terminal paste event, onpaste event is invalid in the app. How to monitor the paste event in the app, that is, after pasting the verification code, monitor the paste event. If the value of the text box for filling in the verification code is not empty, the next step The button is clickable. Otherwise, the next button is unclickable. Use onpaste to monitor the paste event, which is valid in both computer and mobile browsers, but when placed in the app, this event is invalid
