data: {
   info: [{
       name: "yuki",
       tou: "../img/head.jpg",
       zGong: 130,
       gMoney: 222222
     },
     {
       name: "yuki",
       tou: "../img/head.jpg",
       zGong: 130,
       gMoney: 222222
     },
     {
       name: "yuki",
       tou: "../img/head.jpg",
       zGong: 130,
       gMoney: 222222
     },
     {
       name: "yuki",
       tou: "../img/head.jpg",
       zGong: 130,
       gMoney: 222222
     },
     {
       name: "yuki",
       tou: "../img/head.jpg",
       zGong: 130,
       gMoney: 222222
     }
   ]
 }

 onLoad: function () {
   var that = this;
   var up = "info[" + 0 + "].gMoney"; //先用一个变量，把(info[0].gMoney)用字符串拼接起来
   that.setData({
     [up]: 1
   })
 }