A small program to modify the value of a page on one page

　　

    // returns the data to the page of the page 
    var pages = getCurrentPages (); // get the page stack 
    var currPage = pages [pages.length - 1 ]; // current page 
    var prevPage = pages [pages.length - 2 ]; a page on // 
    prevPage.setData ({ 
      myData: { 
        the userName: the userName, 
        USERPHONE: USERPHONE, 
        Province: Province, 
        City: City, 
        Area: Area, 
        addressDetail: addressDetail, 
        ID: ID 
      } 
    })