laundry/pages/signIn/hand/hand.js

// pages/signIn/hand/hand.js
const app=getApp()
Page({

    /**
     * 页面的初始数据
     */
    data: {
        keyword:""
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) {
     
    },
    bindinput(e){
        console.log(e)
          this.setData({
            keyword:e.detail.value
          })
      },
      sign: function () {
        var that=this;
        app.api.useApi(app.globalData.baseAppUrl + "api/admin/sorting/sign", {
            seal_no:this.data.keyword
          }, "post").then(function (res) {
            console.log(res);
            if (res.code != 200) {
                wx.showLoading({
                    title:res.message.msg,
                  })
                  setTimeout(function () {
                    wx.hideLoading();
                  }, 1000);
                  
            } else {
              wx.hideLoading();
              var data=res.message.data
              wx.showLoading({
                title: res.message.msg,
              })
              setTimeout(function () {
                wx.hideLoading();
                let pages = getCurrentPages();
   
               
                wx.navigateBack({
                  delta: 1 //想要返回的层级
                })


              }, 1000);
              
            }
          }).catch(function (err) {
              
            console.log(222);
          })
    },
})