选词填空类型
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网址：https://juejin.im/post/5f0b1d18e51d453460292e2f
效果图：https://user-gold-cdn.xitu.io/2020/7/12/173436ea1033e581?imageslim
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自定义密码输出框
网址：https://mp.weixin.qq.com/s/2nISG6QfyldoRDBe3XCB8A
效果图：https://mmbiz.qpic.cn/mmbiz_gif/v1LbPPWiaSt7D7dCsjU2ictQhDibNfSV4la3abCRibyMvJGdKVdKTmmnYPPOOHQnRkdN5mCSIycpefEy8UzBNyu9qQ/640?wx_fmt=gif&tp=webp&wxfrom=5&wx_lazy=1
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