杩唬鍣?鐢熸垚鍣?瑁呴グ鍣?閫掑綊

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鏍囩锛?a href='http://www.mamicode.com/so/1/model' title='model'>model   閫掑綊   ges   word   png   number   閫掑綊鍑芥暟   loaded   

杩唬鍣?/span>

銆€銆€鍙凯浠e璞?/span>

銆€銆€銆€銆€1)瀹氫箟锛氬湪python涓紝浣嗗嚒鍐呴儴鍚湁--itter--鏂规硶鐨勫璞★紝閮芥槸鍙凯浠e璞?/strong>

銆€銆€銆€銆€銆€鍙互閫氳繃dir()鍘诲垽鏂竴涓璞″叿鏈変粈涔堟柟娉?/p>

銆€銆€銆€銆€銆€dir()浼氳繑鍥炰竴涓垪琛紝杩欎釜鍒楄〃涓惈鏈夎瀵硅薄鐨勪互瀛楃涓插舰寮忕殑鎵€鏈夋柟娉?/p>

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銆€銆€銆€銆€浠庡瓧闈㈡剰鎬濇潵璇?/strong>锛氬彲杩唬瀵硅薄灏辨槸涓€涓彲浠ラ噸澶嶅彇鍊肩殑鏁版嵁闆嗐€?/span>

銆€銆€銆€銆€浠庝笓涓氳搴︽潵璇?/strong>锛氫絾鍑″唴閮ㄥ惈鏈?strong>iter鏂规硶鐨勫璞★紝閮芥槸鍙凯浠e璞?銆?span class="md-softbreak"> 鍙凯浠e璞″彲浠ラ€氳繃鍒ゆ柇璇ュ璞℃槸鍚︽湁’iter’鏂规硶鏉ュ垽鏂€?/span>

銆€銆€銆€銆€鍙凯浠e璞$殑浼樼偣锛?/strong> 鍙互鐩磋鐨勬煡鐪嬮噷闈㈢殑鏁版嵁銆傛搷浣滄柟娉曞锛岀伒娲?/span>

銆€銆€銆€銆€鍙凯浠e璞$殑缂虹偣锛?/strong>

銆€銆€銆€銆€銆€銆€1.鍗犵敤鍐呭瓨銆?/span>

銆€銆€銆€銆€銆€銆€2.鍙凯浠e璞′笉鑳借凯浠e彇鍊硷紙闄ゅ幓绱㈠紩锛宬ey浠ュ锛夈€?/span>

銆€銆€杩唬鍣ㄥ畾涔?/span>

銆€銆€銆€銆€浠庡瓧闈㈡剰鎬濇潵璇达細鍙互杩唬鍙栧€肩殑宸ュ叿

銆€銆€銆€銆€浠庝笓涓氳搴︽潵璇?/strong>锛氬湪python涓唴閮ㄥ惈鏈?-iter--鏂规硶骞朵笖鍚湁--next--鏂规硶鐨勫璞″氨鏄凯浠e櫒

銆€銆€銆€銆€2)濡備綍鍒ゆ柇璇ュ璞℃槸鍚︽槸杩唬鍣?/strong>

銆€銆€銆€銆€銆€銆€閫氳繃dir()鏉ュ垽鏂?/span>

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銆€銆€銆€銆€3) 鍙凯浠e璞″浣曡浆鍖栨垚杩唬鍣細

l1 = [1, 2, 3, 4, 5, 6]
obj = l1.__iter__()  obj銆傚氨鏄凯浠e櫒

銆€銆€銆€銆€4) 杩唬鍣ㄥ彇鍊硷細

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銆€銆€銆€銆€5) while妯℃嫙for鐨勫唴閮ㄥ惊鐜満鍒讹細

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銆€銆€銆€銆€6)灏忕粨锛?/strong>

銆€銆€銆€銆€銆€銆€杩唬鍣ㄧ壒鎬э細

銆€銆€銆€銆€銆€銆€鎯版€ф満鍒讹細next涓€娆★紝鍘讳竴涓€硷紝缁濅笉澶氬彇

銆€銆€銆€銆€銆€銆€鑺傜渷鍐呭瓨锛氭瘡娆″彇鍊奸兘鍦ㄥ唴瀛樹腑灏嗕笂涓€娆℃暟鎹噴鏀撅紝鍔犺浇褰撳墠鏁版嵁

銆€銆€銆€銆€銆€銆€鍙栧€兼椂涓嶈兘璧板洖澶磋矾锛屽彧鑳戒竴鐩村悜涓嬪彇鍊硷紝 ? 涓嶈兘鐩磋鏌ョ湅閲岄潰鐨勬暟鎹紝鎿嶄綔鏂规硶灏戯紝涓嶇伒娲伙紝鏁堢巼鐩稿浣?span class="md-softbreak"> 浠ユ椂闂存崲绌洪棿锛氳凯浠e櫒 浠ョ┖闂存崲鏃堕棿锛氬瓧鍏?/span>

 

鍙凯浠e璞′笌杩唬鍣ㄧ殑瀵规瘮锛?/strong> 

銆€銆€鍙凯浠e璞★細
    銆€銆€銆€鏄竴涓鏈夌殑鏂规硶姣旇緝澶氾紝鎿嶄綔鐏垫椿锛堟瘮濡傚垪琛紝瀛楀吀鐨勫鍒犳敼鏌ワ紝瀛楃涓茬殑甯哥敤鎿嶄綔鏂规硶绛夛級,姣旇緝鐩磋锛屼絾鏄崰鐢ㄥ唴瀛橈紝鑰屼笖涓嶈兘鐩存帴閫氳繃寰幆杩唬鍙栧€肩殑杩欎箞涓€涓暟鎹泦銆?br />?
    銆€銆€銆€搴旂敤锛氬綋浣犱晶閲嶄簬瀵逛簬鏁版嵁鍙互鐏垫椿澶勭悊锛屽苟涓斿唴瀛樼┖闂磋冻澶燂紝灏嗘暟鎹泦璁剧疆涓哄彲杩唬瀵硅薄鏄槑纭殑閫夋嫨銆?br />?
    銆€杩唬鍣細
    銆€銆€銆€鏄竴涓潪甯歌妭鐪佸唴瀛橈紝鍙互璁板綍鍙栧€间綅缃紝鍙互鐩存帴閫氳繃寰幆+next鏂规硶鍙栧€硷紝浣嗘槸涓嶇洿瑙傦紝鎿嶄綔鏂规硶姣旇緝鍗曚竴鐨勬暟鎹泦銆?br />?
    銆€銆€銆€搴旂敤锛氬綋浣犵殑鏁版嵁閲忚繃澶э紝澶у埌瓒充互鎾戠垎浣犵殑鍐呭瓨鎴栬€呬綘浠ヨ妭鐪佸唴瀛樹负棣栭€夊洜绱犳椂锛屽皢鏁版嵁闆嗚缃负杩唬鍣ㄦ槸涓€涓笉閿欑殑閫夋嫨銆傦紙鍙弬鑰冧负浠€涔坧ython鎶婃枃浠跺彞鏌勮缃垚杩唬鍣級銆?/p>

 

 

鐢熸垚鍣細

銆€銆€鍒濆鐢熸垚鍣?/span>

銆€銆€鐢熸垚鍣ㄧ殑鏈川鏄凯浠e櫒 鍞竴鐨勪笉鍚屽氨鏄細杩唬鍣ㄩ兘鏄痯ython缁欐垜浠彁渚涚殑宸茬粡鍐欏ソ鐨勫伐鍏锋垨鑰呴€氳繃鏁版嵁杞寲寰楁潵鐨?span class="md-softbreak"> 鐢熸垚鍣ㄤ娇鎴戜滑闇€瑕侀€氳繃python浠g爜鏋勫缓鐨勫伐鍏?/span>

銆€銆€鐢熸垚鍣ㄧ殑鏋勫缓鏂瑰紡锛?/span>

銆€銆€鍦╬ython涓湁涓夌鏂瑰紡鏉ュ垱寤虹敓鎴愬櫒锛?/span>

銆€銆€銆€銆€1.閫氳繃鐢熸垚鍣ㄥ嚱鏁?span class="md-softbreak"> ?

銆€銆€銆€銆€2.閫氳繃鐢熸垚鍣ㄦ帹瀵煎紡 ?

銆€銆€銆€銆€3.python鍐呯疆鍑芥暟鎴栬€呮ā鍧楁彁渚涳紙鍏跺疄1,3涓ょ鏈川涓婂樊涓嶅锛岄兘鏄€氳繃鍑芥暟鐨勫舰寮忕敓鎴愶紝鍙笉杩?鏄嚜宸卞啓鐨勭敓鎴愬櫒鍑芥暟锛?鏄痯ython鎻愪緵鐨勭敓鎴愬櫒鍑芥暟鑰屽凡锛?/span>

銆€銆€鐢熸垚鍣ㄥ嚱鏁?/span>

銆€銆€閫氳繃鐮旂┒鐢熸垚鍣ㄥ嚱鏁版潵鏋勫缓鐢熸垚鍣ㄥ嚱鏁?/span>

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銆€銆€yield蹇呴』鍜宯ext涓€涓€瀵瑰簲

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銆€銆€yield鍜寉ield from鐨勫尯鍒細

銆€銆€銆€銆€yield :鏄敓鎴愬櫒鐨勬爣璇嗭紝next蹇呴』鍜寉ield涓€涓€瀵瑰簲

銆€銆€銆€銆€yield from锛氭浛浠d簡鍐呭眰for寰幆锛屾彁楂樹簡鏁堢巼銆?/span>


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鎺ㄥ寮忥細

1.鍒楄〃鎺ㄥ寮?br />
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[缁撴灉锛岃娉昡 # 瀹瑰櫒
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2.闆嗗悎鎺ㄥ寮?span class="cm-variable">
缁撴灉 璇硶 瀹瑰櫒
s = i for i in range(10)
print(s)
?
3.瀛楀吀鎺ㄥ寮?
print(i:i+1 for i in range(10))
?
4.鐢熸垚鍣ㄦ帹瀵煎紡
print(i for i in range(10))

闂寘

銆€銆€闂寘鐨勫畾涔?

銆€銆€銆€銆€1.闂寘鏄祵濂楀湪鍑芥暟涓殑鍑芥暟 ?

銆€銆€銆€銆€2.闂寘蹇呴』鏄唴灞傚嚱鏁板澶栧眰鍑芥暟鐨勫彉閲?闈炲叏灞€鍙橀噺)鐨勫紩鐢?/span>

銆€銆€浼樼偣锛?/span>

銆€銆€銆€銆€鑷敱鍙橀噺涓嶄細浼氶殢鐫€鍑芥暟鐨勭粨鏉熻€屾秷澶憋紝淇濊瘉浜嗘暟鎹殑瀹夊叏

銆€銆€銆€銆€瑁呴グ鍣ㄧ殑鏈川鏄棴鍖?/span>

鎶€鏈浘鐗? src=銆€銆€銆€銆€鎬庢牱鏌ョ湅闂寘锛?span class="md-softbreak"> 鍑芥暟鍚?__ code__ .co _freevars 杩斿洖None 灏变笉鏄棴鍖?/span>

銆€銆€闂寘鐨勫簲鐢細

銆€銆€銆€銆€1.涓€浜涢噸瑕佺殑鏁版嵁鐢ㄩ棴鍖呭垱寤猴紝淇濊瘉浜嗘暟鎹殑瀹夊叏锛?/span>

銆€銆€銆€銆€闂寘涓寮曠敤鐨勫彉閲忥紙涔熷彨鑷敱鍙橀噺锛変笉浼氶殢鐫€鍑芥暟鐨勭粨鏉熻€屾秷澶便€?/span>

銆€銆€銆€銆€2.瑁呴グ鍣ㄧ殑鏈川灏辨槸闂寘

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瑁呴グ鍣?/span>

銆€銆€瑁呴グ鍣ㄥ畾涔夛細鍦ㄤ笉鏀瑰彉鍘熻楗扮殑鍑芥暟鐨勬簮浠g爜鍙婂叾璋冪敤鏂瑰紡鐨勫墠鎻愪笅锛屼负鍏舵坊鍔犻澶栫殑鍔熻兘

銆€銆€瑁呴グ鍣ㄩ伒寰殑鍘熷垯锛?/strong>

銆€銆€銆€銆€銆€寮€鏀惧皝闂師鍒欙細

銆€銆€銆€銆€銆€瀵规墿灞曞紑鏀?span class="md-softbreak"> ? 瀵规簮浠g爜灏侀棴 ? 涓嶈兘鏀瑰彉鍘熸湁鐨勮皟鐢ㄦ柟寮?/span>

銆€銆€鏍囧噯鏉胯楗板櫒
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銆€銆€甯﹀弬鏁扮殑瑁呴グ鍣?/span>
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銆€銆€鎵ц娴佺▼

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 銆€銆€澶氫釜瑁呴グ鍣ㄨ楗颁竴涓嚱鏁?/span>

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銆€銆€鎵ц娴佺▼

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閫掑綊锛?/span>

銆€銆€閫掑綊鍑芥暟锛氬湪涓€涓嚱鏁伴噷鍦ㄨ皟鐢ㄨ繖涓嚱鏁版湰韬€?/span>

銆€銆€閫掑綊榛樿鐨勬渶澶ф繁搴︼細1000

銆€銆€閫掑綊鐨勬渶澶ф繁搴︼細998

銆€銆€閫掑綊鏍规湰锛氶€嗘帹锛岀粓姝㈡潯浠讹紙return锛?/span>

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鏂愭尝閭e鏁板垪锛?, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233

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