方法
private void SwitchToLanguageMode(string cultureType)
{
var installedInputLanguages = InputLanguage.InstalledInputLanguages;
if (installedInputLanguages.Cast<InputLanguage>().Any(i => i.Culture.Name == cultureType))
{
InputLanguage.CurrentInputLanguage = InputLanguage.FromCulture(System.Globalization.CultureInfo.GetCultureInfo(cultureType));
}
}
调用
SwitchToLanguageMode("en-US");