1回答

Dell

2019-09-15

是防抖，不好意思

1

3

慕仙2264852

回复

MRNUR

if (this.touchStatus) { let flag = true if (!flag) return flag = false setTimeout(() => { // 函数节流提升性能 // const startY = this.$refs['A'][0].offsetTop const touchY = e.touches[0].clientY - 79 const index = Math.floor((touchY - this.startY) / 20) if (index >= 0 && index < this.latters.length) { this.$emit('change', this.latters[index]) } flag = true }, 16) }

2020-01-25

共3条回复