JS基于ES6新特性async await进行异步处理操作示例

{
  "code":0,
  "msg":"成功"
}

{
  "code":0,
  "list":[
    {
      "id":1,
      "name":"唐僧"
    },
    {
      "id":2,
      "name":"孙悟空"
    },
    {
      "id":3,
      "name":"猪八戒"
    },
    {
      "id":4,
      "name":"沙僧"
    }
  ]
}

function getCode(){
  return axios.get('json/code.json');
}
function getlist(params){
  return axios.get('json/person.json',{params})
}

function getFinal(){
   console.log("我是getFinal函数")
   getCode().then(function(res){
     if(res.data.code == 0){
        console.log(res.data.code);
         var params = {
           code:res.data.code
         }
        getlist(params).then(function(res){
          if(res.data.code == 0){
             console.log(res.data.list);
            }
          })
        }
     })
}
getFinal();

async function getResult(){
      console.log("我是getResult函数")
      let code = await getCode();
      console.log(code.data.code);
      if(code.data.code == 0){
        var params = {
          code:code.data.code
        }
        let list = await getlist(params);
        console.log(list.data.list);
      }
    }
getResult();

async function getResult(){
      console.log("我是getResult函数")
      try{
        let code = await getCode();
        console.log(code.data.code);
        if(code.data.code == 0){
          var params = {
            code:code.data.code
          }
          let list = await getlist(params);
          console.log(list.data.list);
        }
      }catch(err){
        console.log(err);
      }
    }
getResult();

let code = await getCode();