可自定义延迟，开关键，1000 = 1ms
https://xiaogao.lanzoum.com/izQEx03fbp0f https://cloud.189.cn/t/6ve2uyAVJje2 https://www.aliyundrive.com/s/NFGxpkiTFke https://pan.baidu.com/s/1ka-kKtK8k8CTg3ocRDCj0A
