发表于 2009-1-5 19:48
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java String Format 鏂规硶鍙婂弬鏁拌鏄
鍙戝竷: 2008-12-09 17:51 | 浣滆: webmaster | 鏉ユ簮: 鏈珯鍘熷垱 | 鏌ョ湅: 177娆
JDK1.5涓紝String绫绘柊澧炰簡涓涓緢鏈夌敤鐨勯潤鎬佹柟娉昐tring.format():
format(Locale l, String format, Object... args) 浣跨敤鎸囧畾鐨勮瑷鐜銆佹牸寮忓瓧绗︿覆鍜屽弬鏁拌繑鍥炰竴涓牸寮忓寲瀛楃涓层
format(String format, Object... args) 浣跨敤鎸囧畾鐨勬牸寮忓瓧绗︿覆鍜屽弬鏁拌繑鍥炰竴涓牸寮忓寲瀛楃涓层
涓惧嚑涓繖涓柟娉曞疄鐢ㄧ殑渚嬪瓙(娉ㄩ噴鏄緭鍑虹粨鏋)锛
CODE:
long now = System.currentTimeMillis();
String s = String.format("%tR", now); // "15:12"
CODE:
// Current month/day/year
Date d = new Date(now);
s = String.format("%tD", d); // "07/13/04"
CODE:
s = String.format("%,d", Integer.MAX_VALUE); // "2,147,483,647"
CODE:
s = String.format("%05d", 123); // "00123"鏄笉鏄緢鏂逛究锛岃浜哄姩蹇冨晩锛熷搱鍝堬紝杩樻湁鏇村鐨勬晥鏋!
鍏跺疄format鍑芥暟鏈変簺绫讳技c璇█涓璸rintf鍑芥暟锛屼竴浜涙牸寮忓瓧绗︿覆涓 C 绫讳技锛屼絾宸茶繘琛屼簡鏌愪簺瀹氬埗锛屼互閫傚簲 Java
璇█锛屽苟涓斿埄鐢ㄤ簡鍏朵腑涓浜涚壒鎬с傛鏂规硶鎻愪緵浜嗗甯冨眬瀵归綈鍜屾帓鍒楃殑鏀寔锛屼互鍙婂鏁板笺佸瓧绗︿覆鍜屾棩鏈/鏃堕棿鏁版嵁鐨勫父瑙勬牸寮忓拰鐗瑰畾浜庤瑷鐜鐨勮緭鍑虹殑鏀寔銆傛敮鎸
璇稿 byte銆丅igDecimal 鍜 Calendar 绛夊父瑙 Java 绫诲瀷銆
浜х敓鏍煎紡鍖栬緭鍑虹殑姣忎釜鏂规硶閮介渶瑕佹牸寮忓瓧绗︿覆 鍜屽弬鏁板垪琛ㄣ傛牸寮忓瓧绗︿覆鏄竴涓 String锛屽畠鍙互鍖呭惈鍥哄畾鏂囨湰浠ュ強涓涓垨澶氫釜宓屽叆鐨勬牸寮忚鏄庣銆傝鑰冭檻浠ヤ笅绀轰緥锛
Calendar c = ...;
String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c);
鏍煎紡瀛楃涓叉槸 format 鏂规硶鐨勭涓涓弬鏁般傚畠鍖呭惈涓変釜鏍煎紡璇存槑绗 "%1$tm"銆"%1$te" 鍜
"%1$tY"锛屽畠浠寚鍑哄簲璇ュ浣曞鐞嗗弬鏁颁互鍙婂湪鏂囨湰鐨勪粈涔堝湴鏂规彃鍏ュ畠浠傛牸寮忓瓧绗︿覆鐨勫叾浣欓儴鍒嗘槸鍖呮嫭 "Dukes Birthday: "
鍜屽叾浠栦换浣曠┖鏍兼垨鏍囩偣绗﹀彿鐨勫浐瀹氭枃鏈 鍙傛暟鍒楄〃鐢变紶閫掔粰浣嶄簬鏍煎紡瀛楃涓蹭箣鍚庣殑鏂规硶鐨勬墍鏈夊弬鏁扮粍鎴愩傚湪涓婅堪绀轰緥涓紝鍙傛暟鍒楄〃鐨勫ぇ灏忎负 1锛岀敱鏂板璞
Calendar 缁勬垚銆
1.甯歌绫诲瀷銆佸瓧绗︾被鍨嬪拰鏁板肩被鍨嬬殑鏍煎紡璇存槑绗︾殑璇硶濡備笅锛%[argument_index$][flags][width][.precision]conversion
鍙夌殑 argument_index 鏄竴涓崄杩涘埗鏁存暟锛岀敤浜庤〃鏄庡弬鏁板湪鍙傛暟鍒楄〃涓殑浣嶇疆銆傜涓涓弬鏁扮敱 "1$" 寮曠敤锛岀浜屼釜鍙傛暟鐢 "2$" 寮曠敤锛屼緷姝ょ被鎺ㄣ
鍙夌殑 flags 鏄慨鏀硅緭鍑烘牸寮忕殑瀛楃闆嗐傛湁鏁堟爣蹇楃殑闆嗗悎鍙栧喅浜庤浆鎹㈢被鍨嬨
鍙 width 鏄竴涓潪璐熷崄杩涘埗鏁存暟锛岃〃鏄庤鍚戣緭鍑轰腑鍐欏叆鐨勬渶灏戝瓧绗︽暟銆
鍙 precision 鏄竴涓潪璐熷崄杩涘埗鏁存暟锛岄氬父鐢ㄦ潵闄愬埗瀛楃鏁般傜壒瀹氳涓哄彇鍐充簬杞崲绫诲瀷銆
鎵闇鐨 conversion 鏄竴涓〃鏄庡簲璇ュ浣曟牸寮忓寲鍙傛暟鐨勫瓧绗︺傜粰瀹氬弬鏁扮殑鏈夋晥杞崲闆嗗悎鍙栧喅浜庡弬鏁扮殑鏁版嵁绫诲瀷銆
2.鐢ㄦ潵琛ㄧず鏃ユ湡鍜屾椂闂寸被鍨嬬殑鏍煎紡璇存槑绗︾殑璇硶濡備笅:
%[argument_index$][flags][width]conversion
鍙夌殑 argument_index銆flags 鍜 width 鐨勫畾涔夊悓涓娿
鎵闇鐨 conversion 鏄竴涓敱涓ゅ瓧绗︾粍鎴愮殑搴忓垪銆傜涓涓瓧绗︽槸 't' 鎴 'T'銆傜浜屼釜瀛楃琛ㄦ槑鎵浣跨敤鐨勬牸寮忋傝繖浜涘瓧绗︾被浼间簬浣嗕笉瀹屽叏绛夊悓浜庨偅浜涚敱 GNU date 鍜 POSIX strftime(3c) 瀹氫箟鐨勫瓧绗︺
3.涓庡弬鏁颁笉瀵瑰簲鐨勬牸寮忚鏄庣鐨勮娉曞涓嬶細
%[flags][width]conversion
鍙 flags 鍜 width 鐨勫畾涔夊悓涓娿
鎵闇鐨 conversion 鏄竴涓〃鏄庤鍦ㄨ緭鍑轰腑鎵鎻掑唴瀹圭殑瀛楃銆
杞崲
杞崲鍙垎涓轰互涓嬪嚑绫伙細
1. 甯歌 - 鍙簲鐢ㄤ簬浠讳綍鍙傛暟绫诲瀷
2. 瀛楃 - 鍙簲鐢ㄤ簬琛ㄧず Unicode 瀛楃鐨勫熀鏈被鍨嬶細char銆丆haracter銆乥yte銆丅yte銆乻hort 鍜 Short銆傚綋
Character.isValidCodePoint(int) 杩斿洖 true 鏃讹紝鍙皢姝よ浆鎹㈠簲鐢ㄤ簬 int 鍜 Integer 绫诲瀷
3. 鏁板
1. 鏁存暟 - 鍙簲鐢ㄤ簬 Java 鐨勬暣鏁扮被鍨嬶細byte銆丅yte銆乻hort銆丼hort銆乮nt銆両nteger銆乴ong銆丩ong 鍜 BigInteger
2. 娴偣 - 鍙敤浜 Java 鐨勬诞鐐圭被鍨嬶細float銆丗loat銆乨ouble銆丏ouble 鍜 BigDecimal
4. 鏃ユ湡/鏃堕棿 - 鍙簲鐢ㄤ簬 Java 鐨勩佽兘澶熷鏃ユ湡鎴栨椂闂磋繘琛岀紪鐮佺殑绫诲瀷锛歭ong銆丩ong銆丆alendar 鍜 Date銆
5. 鐧惧垎姣 - 浜х敓瀛楅潰鍊 '%' ('\u0025')
6. 琛屽垎闅旂 - 浜х敓鐗瑰畾浜庡钩鍙扮殑琛屽垎闅旂
涓嬭〃鎬荤粨浜嗗彈鏀寔鐨勮浆鎹€傜敱澶у啓瀛楃锛堝 'B'銆'H'銆'S'銆'C'銆'X'銆'E'銆'G'銆'A' 鍜
'T'锛夎〃绀虹殑杞崲涓庣敱鐩稿簲鐨勫皬鍐欏瓧绗︾殑杞崲绛夊悓锛屾牴鎹祦琛岀殑 Locale 瑙勫垯灏嗙粨鏋滆浆鎹负澶у啓褰㈠紡闄ゅ銆傚悗鑰呯瓑鍚屼簬
String.toUpperCase() 鐨勪互涓嬭皟鐢.
| 杞崲 | 鍙傛暟绫诲埆 | 璇存槑 |
| 'b', 'B' | 甯歌 | 濡傛灉鍙傛暟 arg 涓 null锛屽垯缁撴灉涓 "false"銆傚鏋 arg 鏄竴涓 boolean 鍊兼垨 Boolean锛屽垯缁撴灉涓 String.valueOf() 杩斿洖鐨勫瓧绗︿覆銆傚惁鍒欑粨鏋滀负 "true"銆 |
| 'h', 'H' | 甯歌 | 濡傛灉鍙傛暟 arg 涓 null锛屽垯缁撴灉涓 "null"銆傚惁鍒欙紝缁撴灉涓鸿皟鐢 Integer.toHexString(arg.hashCode()) 寰楀埌鐨勭粨鏋溿 |
| 's', 'S' | 甯歌 | 濡傛灉鍙傛暟 arg 涓 null锛屽垯缁撴灉涓 "null"銆傚鏋 arg 瀹炵幇 Formattable锛屽垯璋冪敤 arg.formatTo銆傚惁鍒欙紝缁撴灉涓鸿皟鐢 arg.toString() 寰楀埌鐨勭粨鏋溿 |
| 'c', 'C' | 瀛楃 | 缁撴灉鏄竴涓 Unicode 瀛楃 |
| 'd' | 鏁存暟 | 缁撴灉琚牸寮忓寲涓哄崄杩涘埗鏁存暟 |
| 'o' | 鏁存暟 | 缁撴灉琚牸寮忓寲涓哄叓杩涘埗鏁存暟 |
| 'x', 'X' | 鏁存暟 | 缁撴灉琚牸寮忓寲涓哄崄鍏繘鍒舵暣鏁 |
| 'e', 'E' | 娴偣 | 缁撴灉琚牸寮忓寲涓虹敤璁＄畻鏈虹瀛﹁鏁版硶琛ㄧず鐨勫崄杩涘埗鏁 |
| 'f' | 娴偣 | 缁撴灉琚牸寮忓寲涓哄崄杩涘埗鏁 |
| 'g', 'G' | 娴偣 | 鏍规嵁绮惧害鍜岃垗鍏ヨ繍绠楀悗鐨勫硷紝浣跨敤璁＄畻鏈虹瀛﹁鏁板舰寮忔垨鍗佽繘鍒舵牸寮忓缁撴灉杩涜鏍煎紡鍖栥 |
| 'a', 'A' | 娴偣 | 缁撴灉琚牸寮忓寲涓哄甫鏈夋晥浣嶆暟鍜屾寚鏁扮殑鍗佸叚杩涘埗娴偣鏁 |
| 't', 'T' | 鏃ユ湡/鏃堕棿 | 鏃ユ湡鍜屾椂闂磋浆鎹㈠瓧绗︾殑鍓嶇紑銆傝鍙傞槄鏃ユ湡/鏃堕棿杞崲銆 |
| '%' | 鐧惧垎姣 | 缁撴灉涓哄瓧闈㈠ '%' ('\u0025') |
| 'n' | 琛屽垎闅旂 | 缁撴灉涓虹壒瀹氫簬骞冲彴鐨勮鍒嗛殧绗 |
浠讳綍鏈槑纭畾涔変负杞崲鐨勫瓧绗﹂兘鏄潪娉曞瓧绗︼紝骞朵笖閮借淇濈暀锛屼互渚涘皢鏉ユ墿灞曚娇鐢ㄣ
鏃ユ湡/鏃堕棿杞崲
浠 涓嬫棩鏈熷拰鏃堕棿杞崲鐨勫悗缂瀛楃鏄负 't' 鍜 'T' 杞崲瀹氫箟鐨勩傝繖浜涚被鍨嬬浉浼间簬浣嗕笉瀹屽叏绛夊悓浜庨偅浜涚敱 GNU date 鍜 POSIX strftime(3c) 瀹氫箟鐨勭被鍨嬨傛彁渚涘叾浠栬浆鎹㈢被鍨嬫槸涓轰簡璁块棶鐗瑰畾浜 Java 鐨勫姛鑳斤紙濡傚皢 'L' 鐢ㄤ綔绉掍腑鐨勬绉掞級銆
浠ヤ笅杞崲瀛楃鐢ㄦ潵鏍煎紡鍖栨椂闂达細
| 'H' | 24 灏忔椂鍒剁殑灏忔椂锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑涓や綅鏁帮紝鍗 00 - 23銆 |
| 'I' | 12 灏忔椂鍒剁殑灏忔椂锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑涓や綅鏁帮紝鍗 01 - 12銆 |
| 'k' | 24 灏忔椂鍒剁殑灏忔椂锛屽嵆 0 - 23銆 |
| 'l' | 12 灏忔椂鍒剁殑灏忔椂锛屽嵆 1 - 12銆 |
| 'M' | 灏忔椂涓殑鍒嗛挓锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑涓や綅鏁帮紝鍗 00 - 59銆 |
| 'S' | 鍒嗛挓涓殑绉掞紝琚牸寮忓寲涓哄繀瑕佹椂甯﹀墠瀵奸浂鐨勪袱浣嶆暟锛屽嵆 00 - 60 锛"60" 鏄敮鎸侀棸绉掓墍闇鐨勪竴涓壒娈婂硷級銆 |
| 'L' | 绉掍腑鐨勬绉掞紝琚牸寮忓寲涓哄繀瑕佹椂甯﹀墠瀵奸浂鐨勪笁浣嶆暟锛屽嵆 000 - 999銆 |
| 'N' | 绉掍腑鐨勬寰锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑涔濅綅鏁帮紝鍗 000000000 - 999999999銆 |
| 'p' | 鐗瑰畾浜庤瑷鐜鐨 涓婂崍鎴栦笅鍗 鏍囪浠ュ皬鍐欏舰寮忚〃绀猴紝渚嬪 "am" 鎴 "pm"銆備娇鐢ㄨ浆鎹㈠墠缂 'T' 鍙互寮鸿灏嗘杈撳嚭杞崲涓哄ぇ鍐欏舰寮忋 |
| 'z' | 鐩稿浜 GMT 鐨 RFC 822 鏍煎紡鐨勬暟瀛楁椂鍖哄亸绉婚噺锛屼緥濡 -0800銆 |
| 'Z' | 琛ㄧず鏃跺尯缂╁啓褰㈠紡鐨勫瓧绗︿覆銆侳ormatter 鐨勮瑷鐜灏嗗彇浠ｅ弬鏁扮殑璇█鐜锛堝鏋滄湁锛夈 |
| 's' | 鑷崗璋冧笘鐣屾椂 (UTC) 1970 骞 1 鏈 1 鏃 00:00:00 鑷崇幇鍦ㄦ墍缁忚繃鐨勭鏁帮紝鍗 Long.MIN_VALUE/1000 涓 Long.MAX_VALUE/1000 涔嬮棿鐨勫樊鍊笺 |
| 'Q' | 鑷崗璋冧笘鐣屾椂 (UTC) 1970 骞 1 鏈 1 鏃 00:00:00 鑷崇幇鍦ㄦ墍缁忚繃鐨勬绉掓暟锛屽嵆 Long.MIN_VALUE 涓 Long.MAX_VALUE 涔嬮棿鐨勫樊鍊笺 |
浠ヤ笅杞崲瀛楃鐢ㄦ潵鏍煎紡鍖栨棩鏈燂細
| 'B' | 鐗瑰畾浜庤瑷鐜鐨鏈堜唤鍏ㄧО锛屼緥濡 "January" 鍜 "February"銆 |
| 'b' | 鐗瑰畾浜庤瑷鐜鐨鏈堜唤绠绉锛屼緥濡 "Jan" 鍜 "Feb"銆 |
| 'h' | 涓 'b' 鐩稿悓銆 |
| 'A' | 鐗瑰畾浜庤瑷鐜鐨鏄熸湡鍑鍏ㄧО锛屼緥濡 "Sunday" 鍜 "Monday" |
| 'a' | 鐗瑰畾浜庤瑷鐜鐨鏄熸湡鍑绠绉帮紝渚嬪 "Sun" 鍜 "Mon" |
| 'C' | 闄や互 100 鐨勫洓浣嶆暟琛ㄧず鐨勫勾浠斤紝琚牸寮忓寲涓哄繀瑕佹椂甯﹀墠瀵奸浂鐨勪袱浣嶆暟锛屽嵆 00 - 99 |
| 'Y' | 骞翠唤锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑鍥涗綅鏁帮紙鑷冲皯锛夛紝渚嬪锛0092 绛変簬鏍奸噷楂樺埄鍘嗙殑 92 CE銆 |
| 'y' | 骞翠唤鐨勬渶鍚庝袱浣嶆暟锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑涓や綅鏁帮紝鍗 00 - 99銆 |
| 'j' | 涓骞翠腑鐨勫ぉ鏁帮紝琚牸寮忓寲涓哄繀瑕佹椂甯﹀墠瀵奸浂鐨勪笁浣嶆暟锛屼緥濡傦紝瀵逛簬鏍奸噷楂樺埄鍘嗘槸 001 - 366銆 |
| 'm' | 鏈堜唤锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆剁殑涓や綅鏁帮紝鍗 01 - 13銆 |
| 'd' | 涓涓湀涓殑澶╂暟锛岃鏍煎紡鍖栦负蹇呰鏃跺甫鍓嶅闆朵袱浣嶆暟锛屽嵆 01 - 31 |
| 'e' | 涓涓湀涓殑澶╂暟锛岃鏍煎紡鍖栦负涓や綅鏁帮紝鍗 1 - 31銆 |
浠ヤ笅杞崲瀛楃鐢ㄤ簬鏍煎紡鍖栧父瑙佺殑鏃ユ湡/鏃堕棿缁勫悎銆
| 'R' | 24 灏忔椂鍒剁殑鏃堕棿锛岃鏍煎紡鍖栦负 "%tH:%tM" |
| 'T' | 24 灏忔椂鍒剁殑鏃堕棿锛岃鏍煎紡鍖栦负 "%tH:%tM:%tS"銆 |
| 'r' | 12 灏忔椂鍒剁殑鏃堕棿锛岃鏍煎紡鍖栦负 "%tI:%tM:%tS %Tp"銆備笂鍗堟垨涓嬪崍鏍囪 ('%Tp') 鐨勪綅缃彲鑳戒笌璇█鐜鏈夊叧銆 |
| 'D' | 鏃ユ湡锛岃鏍煎紡鍖栦负 "%tm/%td/%ty"銆 |
| 'F' | ISO 8601 鏍煎紡鐨勫畬鏁存棩鏈燂紝琚牸寮忓寲涓 "%tY-%tm-%td"銆 |
| 'c' | 鏃ユ湡鍜屾椂闂达紝琚牸寮忓寲涓 "%ta %tb %td %tT %tZ %tY"锛屼緥濡 "Sun Jul 20 16:17:00 EDT 1969"銆 |
浠讳綍鏈槑纭畾涔変负杞崲鐨勫瓧绗﹂兘鏄潪娉曞瓧绗︼紝骞朵笖閮借淇濈暀锛屼互渚涘皢鏉ユ墿灞曚娇鐢ㄣ
鏍囧織
涓嬭〃鎬荤粨浜嗗彈鏀寔鐨勬爣蹇椼倅 琛ㄧず璇ユ爣蹇楀彈鎸囩ず鍙傛暟绫诲瀷鏀寔銆
| 鏍囧織 | 甯歌 | 瀛楃 | 鏁存暟 | 娴偣 | 鏃ユ湡/鏃堕棿 | 璇存槑 |
| '-' | y | y | y | y | y | 缁撴灉灏嗘槸宸﹀榻愮殑銆 |
| '#' | y1 | - | y3 | y | - | 缁撴灉搴旇浣跨敤渚濊禆浜庤浆鎹㈢被鍨嬬殑鏇挎崲褰㈠紡 |
| '+' | - | - | y4 | y | - | 缁撴灉鎬绘槸鍖呮嫭涓涓鍙 |
| ' ' | - | - | y4 | y | - | 瀵逛簬姝ｅ硷紝缁撴灉涓皢鍖呮嫭涓涓墠瀵肩┖鏍 |
| '0' | - | - | y | y | - | 缁撴灉灏嗙敤闆舵潵濉厖 |
| ',' | - | - | y2 | y5 | - | 缁撴灉灏嗗寘鎷壒瀹氫簬璇█鐜鐨缁勫垎闅旂 |
| '(' | - | - | y4 | y5 | - | 缁撴灉灏嗘槸鐢ㄥ渾鎷彿鎷捣鏉ョ殑璐熸暟 |
1 鍙栧喅浜 Formattable 鐨勫畾涔夈
2 鍙傜敤浜 'd' 杞崲銆
3 鍙傜敤浜 'o'銆'x' 鍜 'X' 杞崲銆
4 瀵 BigInteger 搴旂敤 'd'銆'o'銆'x' 鍜 'X' 杞崲鏃讹紝鎴栬呭 byte 鍙 Byte銆乻hort 鍙 Short銆乮nt 鍙 Integer銆乴ong 鍙 Long 鍒嗗埆搴旂敤 'd' 杞崲鏃堕傜敤銆
5 鍙傜敤浜 'e'銆'E'銆'f'銆'g' 鍜 'G' 杞崲銆
浠讳綍鏈樉寮忓畾涔変负鏍囧織鐨勫瓧绗﹂兘鏄潪娉曞瓧绗︼紝骞朵笖閮借淇濈暀锛屼互渚涙墿灞曚娇鐢ㄣ
瀹藉害 瀹藉害鏄皢鍚戣緭鍑轰腑鍐欏叆鐨勬渶灏戝瓧绗︽暟銆傚浜庤鍒嗛殧绗﹁浆鎹紝涓嶉傜敤瀹藉害锛屽鏋滄彁渚涘搴︼紝鍒欎細鎶涘嚭寮傚父銆
绮惧害 瀵逛簬甯歌鍙傛暟绫诲瀷锛岀簿搴︽槸灏嗗悜杈撳嚭涓啓鍏ョ殑鏈澶氬瓧绗︽暟銆
瀵逛簬娴偣杞崲 'e'銆'E' 鍜 'f'锛岀簿搴︽槸灏忔暟鐐瑰垎闅旂鍚庣殑浣嶆暟銆傚鏋滆浆鎹㈡槸 'g' 鎴 'G'锛岄偅涔堢簿搴︽槸鑸嶅叆璁＄畻鍚庢墍寰楁暟鍊肩殑鎵鏈変綅鏁般傚鏋滆浆鎹㈡槸 'a' 鎴 'A'锛屽垯涓嶅繀鎸囧畾绮惧害銆
瀵逛簬瀛楃銆佹暣鏁板拰鏃ユ湡/鏃堕棿鍙傛暟绫诲瀷杞崲锛屼互鍙婄櫨鍒嗘瘮鍜岃鍒嗛殧绗﹁浆鎹紝绮惧害鏄笉閫傜敤鐨勶紱濡傛灉鎻愪緵绮惧害锛屽垯浼氭姏鍑哄紓甯搞
鍙傛暟绱㈠紩 鍙傛暟绱㈠紩鏄竴涓崄杩涘埗鏁存暟锛岀敤浜庤〃鏄庡弬鏁板湪鍙傛暟鍒楄〃涓殑浣嶇疆銆傜涓涓弬鏁扮敱 "1$" 寮曠敤锛岀浜屼釜鍙傛暟鐢 "2$" 寮曠敤锛屼緷姝ょ被鎺ㄣ
鏍规嵁浣嶇疆寮曠敤鍙傛暟鐨勫彟涓绉嶆柟娉曟槸浣跨敤 '<' ('\u003c') 鏍囧織锛岃繖灏嗕細閲嶇敤浠ュ墠鏍煎紡璇存槑绗︾殑鍙傛暟銆備緥濡傦紝浠ヤ笅涓ゆ潯璇彞浜х敓鐨勫瓧绗︾浉鍚岋細
Calendar c = ...;
String s1 = String.format("Duke's Birthday: %1$tm %1$te,%1$tY", c);
String s2 = String.format("Duke's Birthday: %1$tm %<$te,%<$tY", c);
