Decimal.Round()鏂规硶鏄疌#涓敤浜庡decimal绫诲瀷鐨勬暟鍊艰繘琛屽洓鑸嶄簲鍏ョ殑鏂规硶銆傚畠鐨勮娉曞涓嬶細

public static decimal Round(decimal d)

public static decimal Round(decimal d, int decimals)

public static decimal Round(decimal d, MidpointRounding mode)

public static decimal Round(decimal d, int decimals, MidpointRounding mode)

鍏朵腑锛宒琛ㄧず瑕佽繘琛屽洓鑸嶄簲鍏ョ殑decimal鏁板€硷紝decimals琛ㄧず淇濈暀鐨勫皬鏁颁綅鏁帮紝mode琛ㄧず鑸嶅叆鐨勬柟寮忋€?/p>

涓嬮潰鏄竴浜涘疄渚嬫潵璇存槑Decimal.Round()鏂规硶鐨勪娇鐢細

1. 鍥涜垗浜斿叆鍒版暣鏁颁綅锛?/li>

decimal number = 3.7m;

decimal roundedNumber = Decimal.Round(number);

Console.WriteLine(roundedNumber); // 杈撳嚭锛?

2. 鍥涜垗浜斿叆鍒版寚瀹氬皬鏁颁綅鏁帮細

decimal number = 3.745m;

decimal roundedNumber = Decimal.Round(number, 2);

Console.WriteLine(roundedNumber); // 杈撳嚭锛?.75

3. 浣跨敤鎸囧畾鐨勮垗鍏ユ柟寮忥細

decimal number = 3.5m;

decimal roundedNumber = Decimal.Round(number, MidpointRounding.AwayFromZero);

Console.WriteLine(roundedNumber); // 杈撳嚭锛?

4. 缁撳悎鎸囧畾灏忔暟浣嶆暟鍜岃垗鍏ユ柟寮忥細

decimal number = 3.745m;

decimal roundedNumber = Decimal.Round(number, 2, MidpointRounding.ToEven);

Console.WriteLine(roundedNumber); // 杈撳嚭锛?.74

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