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if (n <= 1) return;
，详情可参考WPS下载最新地址
▲ 图片来自微博 @数码闲聊站，这一点在爱思助手下载最新版本中也有详细论述
Number of connections — Leading VPNs let you connect an unlimited number of devices with the same account, while others limit you to just a single device. Prioritize services that offer multiple simultaneous connections so you can stay secure on all your devices at the same time. You might stream pornography on a number of devices, so it's best to secure everything with the same account.