小程序验证码输入BUG
https://developers.weixin.qq.com/community/develop/doc/000ae0c28bce50716ad860bd856000?highLine=%25E5%25B0%258F%25E7%25A8%258B%25E5%25BA%258F%25E8%258E%25B7%25E5%258F%2596%25E6%2589%258B%25E6%259C%25BA%25E5%258F%25B7%2520%25E9%25AA%258C%25E8%25AF%2581%25E7%25A0%2581%25E8%25BE%2593%25E5%2585%25A5%25E4%25B8%258D%25E4%25BA%2586最近经常遇到此类情况,麻烦解决下