- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### Version 1.1.6 ### Environment window10, 所有浏览器, vue: 2.5.2 ### Reproduction link [](https://codesandbox.io/s/y04kr2przv) ### Steps to reproduce 当model 设为0 时候 不能正常渲染 ### What is expected? 当 model 设为0时 能正常渲染 ### What is actually happening? UI上不能正常渲染 <!-- generated by issue-helper. DO NOT REMOVE -->