As with crypto-currency, records of who owns what are stored on a ledger that is maintained by thousands of computers around the world. These records can’t be forged because the whole system operates on an open-source network.
Exec runs a command and returns its exit code:
，这一点在safew官方下载中也有详细论述
2 月 26 日，领克汽车销售有限公司副总经理穆军发文回应表示，对于上述情况，领克方面第一时间完成了语音控制优化方案，并通过云端推送更新，后续在行驶状态下只能通过手动控制大灯关闭。
// ⚠️ 易错点1：长度≤1的数组本身有序，返回0而非n