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   源码介绍

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查看当前netfamework版本

private static string GetDotNetVersion()
{
	string text = "0";
	using (RegistryKey registryKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\"))
	{
		string[] subKeyNames = registryKey.GetSubKeyNames();
		foreach (string text2 in subKeyNames)
		{
			if (text2.StartsWith("v"))
			{
				RegistryKey registryKey2 = registryKey.OpenSubKey(text2);
				string text3 = (string)registryKey2.GetValue("Version", "");
				if (string.Compare(text3, text) > 0)
				{
					text = text3;
				}
				if (!(text3 != ""))
				{
					string[] subKeyNames2 = registryKey2.GetSubKeyNames();
					foreach (string name in subKeyNames2)
					{
						RegistryKey registryKey3 = registryKey2.OpenSubKey(name);
						text3 = (string)registryKey3.GetValue("Version", "");
						if (string.Compare(text3, text) > 0)
						{
							text = text3;
						}
					}
				}
			}
		}
	}
	return text;
}