给一个button赋值,
this.setData({
btnTitle: array[resultIndex],
})
这一步报错.help~~
代码如下
btnClick:function(){
var array = ["1", "2", "3"];
var resultIndex = "0";
wx:wx.showActionSheet({
itemList: array,
itemColor: '',
success: function(res) {
resultIndex = res.tapIndex
this.setData({
btnTitle: array[resultIndex],
})
console.log(array[resultIndex])
},
fail: function(res) {
},
complete: function(res) {
},
})
}