下面是参数：

wx.config({

debug: true,

appId: ‘wx9c5a17deba58965e’,

timestamp: 160759286,

nonceStr: ‘yOBUQG7jSdIulyaI’,

signature: ‘18a67863edbe184c810626e12c87903c2caec5e6’,

jsApiList: [‘chooseImage’]

})