能开启多个定时器，可清除

[toRefs]

function _setInterval (handle, delay) { let timer = { id: null } handle() function run () { timer.id = setTimeout(() => { run() handle() }, delay) }

run() return timer }

function _clearSetInterval ({ id }) { clearTimeout(id) }

let t = _setInterval(() => { console.log('hah') }, 1000)

setTimeout(() => { _clearSetInterval(t) }, 4000)

let t2 = _setInterval(() => { console.log('22222') }, 1000)

setTimeout(() => { _clearSetInterval(t2) }, 6000)