- // 调用操作系统 API
- [System.Runtime.InteropServices.DllImport("wininet")]
- private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);
- /// <summary>
- /// 判断是否链接到外网
- /// </summary>
- public static bool IsNetWorkConnect()
- {
- int i = 0;
- return InternetGetConnectedState(out i, 0) ? true : false;
- }
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