const load=async(row:any, expanded:any, resolve: any)=>{
console.log(row.id)
if (expanded) {
const result = await projectApi.page({pid:row.id,page:1,pageSize:999}).then(res => res.data.result);
row.children = result?.items ?? [];
row.hasChildren = false;
resolve(row.children );//这个必须要有，不然第一次加载会展不开
}
}