使用两次单击模拟双击方法

export default {  
    data() {  
        return {  
            index: 0,  
            start_time: 0,  
            end_time: 0  
        };  
    },  
    methods: {  
        fndbClick() {  
            this.index = this.index == 0 ? 1 : this.index + 1;  
            if (this.index == 1) {  
                this.start_time = new Date().getTime();  
                setTimeout(()=>{  
                    this.index = this.start_time = this.end_time = 0;  
                },200)  
            } else if (this.index == 2) {  
                this.end_time = new Date().getTime();  
                if (this.end_time - this.start_time < 300) {  
                    uni.showToast({  
                        title: '双击了屏幕',  
                        icon: 'none'  
                    })  
                }  
                this.index = this.start_time = this.end_time = 0;  
            }  
        }  
    }  
};  
</script>

原文：https://ask.dcloud.net.cn/question/81152   问题下面的回答