add FormatText.ts

src/utils/Time.ts

@@ -1,3 +1,5 @@
+import Toolkit from "./Toolkit";
+
 export default class Time {
 
 	/** 1 秒时间戳 */
@@ -104,6 +106,21 @@ export default class Time {
 		return { l, y, d, h, m, s, ms };
 	}
 
+	public static duration(begin?: number, ms?: boolean): string {
+		if (!begin) {
+			return "";
+		}
+		const r = Time.between(new Date(begin), new Date());
+		const parts: string[] = [];
+		Toolkit.doWhere(0 < r.y, () => parts.push(`${r.y} 年`));
+		Toolkit.doWhere(0 < r.d, () => parts.push(`${r.d} 天`));
+		Toolkit.doWhere(0 < r.h, () => parts.push(`${r.h} 小时`));
+		Toolkit.doWhere(0 < r.m, () => parts.push(`${r.m} 分钟`));
+		Toolkit.doWhere(0 < r.s, () => parts.push(`${r.s} 秒`));
+		Toolkit.doWhere(!!ms && 0 < r.ms, () => parts.push(`${r.ms} 毫秒`));
+		return parts.join(" ");
+	}
+
 	public static toMediaTime(seconds: number): string {
 		seconds = Math.floor(seconds);
 		const hours = Math.floor(seconds / 3600);