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๐Ÿ‘ฉโ€๐Ÿ’ป ๅญ—ไธฒๆ“ทๅ–

ๆ“ทๅ–ๆŒ‡ๅฎš็š„ๅญ—ไธฒ้•ทๅบฆ

ๅ–ๅพ—ๅญ—ไธฒ็š„ๆœซไบ”็ขผโ€‹

string originalString = "้€™ๆ˜ฏไธ€ๅ€‹ๅพˆ้•ท็š„ๅญ—ไธฒ";
int length = originalString.Length;

if (length >= 5)
{
    string lastThreeCharacters = originalString.Substring(length - 5);
    Console.WriteLine("ๆœซไบ”็ขผ: " + lastThreeCharacters);
}
else
{
    // ่™•็†ๅญ—็ฌฆไธฒ้•ทๅบฆไธ่ถณไบ”ๅ€‹char็š„ๆƒ…ๆณ
    Console.WriteLine("ๅญ—ไธฒ้•ทๅบฆไธ่ถณไธ‰ๅ€‹char");
}