每次按提交的报错信息：

runtime-core.esm-bundler.js:41 [Vue warn]: Unhandled error during execution of component event handler at <ElButton onClick=fn<login> class="button" type="primary"  ... > 

代码：

const login = async () => {await form.value.validate()const res = await userLoginService(formModel.value)userStore.setToken(res.data.token)ElMessage.success('登录成功')router.push('/')
}

解决方法：

用 try/catch 抛出错误

const login = async () => {try {await form.value.validate()const res = await userLoginService(formModel.value)userStore.setToken(res.data.token)ElMessage.success('登录成功')router.push('/')} catch (error) {ElMessage.error('登录失败')}
}

现在运行就没问题了