这里是用的 TypeScript, 改改就是 JavaScript
```
/**
* 复制地址
* @param event
*/
const onCopy = (address: any) => {
let copy = (e: any) => {
e.preventDefault()
e.clipboardData.setData('text/plain', address)
// 移除 监听
document.removeEventListener('copy',copy);
}
document.addEventListener('copy',copy)
document.execCommand("Copy");
};
```
