小程序获取小程序码的接口

1. "UTF-8"

2. errMsg:"scanCode:ok"

3. path:"pages/answerPage/answerPage?userInv\u003d63\u0026groupId\u003d139"

4. scanType:"WX_CODE"

如内容，默认吧path后面的符号给编码了，小程序获取小程序码的接口，怎么解决