开启
let timer = Timer.init(timeInterval: 15, target: self, selector: #selector(autoGet), userInfo: nil, repeats: true)
RunLoop.main.add(timer, forMode: RunLoop.Mode.common)
self.timer = timer
定时任务内容
// 每15秒自动获取一次数据
@objc func autoGet() {
self.getAllExchangeSymbol()
self.getAllNetWorkSymbol()
}
结束任务
self.timer?.invalidate()
self.timer = nil
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