绗竴涓細榄旀硶瀛楀吀閿畇ome_dict={}some_dict[5.5]="Ruby"some_dict[5.0]="JavaScript"some_dict[5]="Python"杈撳嚭锛?>>some_dict[5.5]"Ruby">>>>some_dict[5.0]"Python">>>some_dict[5]"Python""Python"娑堥櫎浜?JavaScript"鐨勫瓨鍦紵馃挕璇存槑锛歅ython瀛楀吀閫氳繃妫€鏌ユ槸鍚︾浉绛夊苟姣旇緝鍝堝笇鍊兼潵鍒ゆ柇涓や釜閿槸鍚︾浉鍚屻€傚叿鏈夌浉鍚屽€肩殑涓嶅彲鍙樺璞″湪Python涓缁堝叿鏈夌浉鍚岀殑鍝堝笇鍊笺€傛敞鎰忥細鍏锋湁涓嶅悓鍊肩殑瀵硅薄涔熷彲鑳藉叿鏈夌浉鍚岀殑鏁ｅ垪锛堟暎鍒楀啿绐侊級銆?>>5==5.0True>>>hash(5)==hash(5.0)True鎵ц璇彞some_dict[5]="Python"鏃讹紝鍥犱负Python灏?鍜?.0璇嗗埆涓簊ome_dict鐨勫悓涓€涓敭锛屾墍浠ョ幇鏈夊€尖€淛avaScript鈥濊鍒犻櫎鈥淧ython鈥濊鐩栥€傜浜岋細寮傚父澶勭悊涓殑returndefsome_func():try:return'from_try'finally:return'from_finally'Output:>>>some_func()'from_finally'馃挕娉細褰撳湪"try...return鍚庯紝break鎴朿ontinue涓墽琛宖inally鈥濊鍙ョ殑try锛宖inally瀛愬彞浠嶇劧浼氳鎵ц銆傚嚱鏁扮殑杩斿洖鍊肩敱鏈€鍚庢墽琛岀殑return璇彞鍐冲畾銆傜敱浜庡繀椤绘墽琛宖inally瀛愬彞锛屾墍浠inally瀛愬彞涓殑return姘歌繙鏄渶鍚庢墽琛岀殑璇彞銆傜涓変釜锛氬悓涓€涓璞＄被鐨勫垽鏂璚TF:passOutput:>>>WTF()==WTF()#涓や釜涓嶅悓鐨勫璞′笉搴旇鐩哥瓑False>>>WTF()鍜學TF()#涓嶄竴鏍稦alse>>>hash(WTF())==hash(WTF())#鍝堝笇鍊煎簲璇ヤ篃涓嶄竴鏍稵rue>>>id(WTF())==id(WTF())True馃挕瑙ｉ噴锛氬綋id鍑芥暟琚皟鐢ㄦ椂锛孭ython浼氬垱寤轰竴涓猈TF绫荤殑瀵硅薄锛屽苟灏嗗叾浼犻€掔粰id鍑芥暟銆傜劧鍚巌d鍑芥暟鑾峰彇瀹冪殑id鍊硷紙涔熷氨鏄唴瀛樺湴鍧€锛夛紝鐒跺悗涓㈠純瀵硅薄銆傚璞¤閿€姣併€傚綋鎴戜滑杩炵画涓ゆ杩欐牱鍋氭椂锛孭ython灏嗙浉鍚岀殑鍐呭瓨鍦板潃鍒嗛厤缁欑浜屼釜瀵硅薄銆傚洜涓猴紙鍦–Python涓級id鍑芥暟浣跨敤瀵硅薄鐨勫唴瀛樺湴鍧€浣滀负瀵硅薄鐨刬d鍊硷紝鎵€浠ヤ袱涓璞＄殑id鍊兼槸涓€鏍风殑銆傜患涓婃墍杩帮紝瀵硅薄鐨刬d鍊煎彧鍦ㄥ璞＄殑鐢熷懡鍛ㄦ湡鍐呮槸鍞竴鐨勩€傚湪瀵硅薄琚攢姣佷箣鍚庯紝鎴栬€呭湪瀹冭鍒涘缓涔嬪墠锛屽叾浠栧璞″彲浠ユ湁鐩稿悓鐨刬d鍊笺€傞偅涓轰粈涔坕s鎿嶄綔鐨勭粨鏋滄槸False鍛紵璁╂垜浠湅鐪嬭繖娈典唬鐮併€俢lassWTF(object):def__init__(self):print("I")def__del__(self):print("D")杈撳嚭锛?>>WTF()isWTF()IIDDFalse>>>id(WTF())==id(WTF())IDIDTrue濡傛偍鎵€瑙侊紝瀵硅薄閿€姣佺殑椤哄簭鏄€犳垚鎵€鏈夊樊寮傜殑鍘熷洜銆傛渶杩戞暣鐞嗕簡涓婄櫨浜跨殑Python瀛︿範璧勬枡锛屽寘鎷叆闂ㄧ數瀛愪功銆佹暀绋嬨€佹簮鐮佺瓑锛屽厤璐瑰垎浜粰澶у锛佹兂涓娾€淧ython缂栫▼瀛︿範鍦堚€濓紝鍙戔€淛鈥濆厤璐归鍙?/p>
