vue3.0 + element Plus点击按钮发送请求，添加loading加载状态

1. 添加el-button

 <el-button
     size="small"
     type="danger"
     plain
     @click="handleCheck()"
     :loading="isSending"
  >发送请求</el-button>

2. 设置isSending的初始值,在发送请求时修改isSending的值

const isSending = ref(false)

//在按钮点击时，将isSending的值改为true
const handleCheck = () =>{
  isSending.value = true;
  tableList()
}

//发送请求,将isSending的值改为false
async function tableList(param) {
  const { data } = await postCollectCase(param);
  if (data) {
    isSending.value = false;
  }
}

3. 加载状态实例