1.提交按鈕綁定sumbit,并在comment.js中書寫sumbit函數
```
bindtap="submit"
```
```
submit: function() {
console.log(this.data.content);
console.log(this.data.score);
},
onContentChange: function(event) {
this.setData({
content: event.detail
});
},
onScoreChange: function(event) {
this.setData({
score: event.detail
});
},
```
點擊提交按鈕可以看到日志信息
