为什么点发送send_comment没有反应，回车可以

<view class="footer-center">  
            <input class="input-text" type="text" @confirm="sendMessge" v-model="inputValue" :focus="focus" @blur="blur" :placeholder="placeholder"></input>  
        </view>  
        <view class="footer-right">  
            <button id='msg-type' class="send-comment" @tap="sendMessge">发送</button>  
        </view>  

sendMessge: function () {  

                console.log(this.inputValue)  
                if (!this.inputValue) {  
                    uni.showModal({  
                        content:"还没有输入内容哦!",  
                        showCancel:false  
                    })  
                    return;  
                }  
                var that = this;  
                //点击发送按钮时，通知父组件用户输入的内容  
                this.$emit('send-message', {  
                    type: 'text',  
                    content: that.inputValue  
                });  
                that.inputValue = '';//清空上次输入的内容  
            }

<chat-input @send-message="send_comment"    @blur="blur" :focus="focus" :placeholder="input_placeholder"></chat-input>```