<img width="442" height="248" alt="Image" src="https://github.com/user-attachments/assets/d2abc8f1-f51b-4f8c-bb31-63269bd2a14c" /> const value = ref(null) 输入中文后，没有变化，内容不会置空。初始如果是数值，改成中文后，内容会被置空 <img width="421" height="246" alt="Image" src="https://github.com/user-attachments/assets/b0688ec2-025d-4b75-ae95-d9e86d43e5dc" />
