python鍩虹涔嬪垪琛ㄧ瘒，,鏍囩锛?a hre

python鍩虹涔嬪垪琛ㄧ瘒，,鏍囩锛?a hre

鏍囩锛?a href='http://www.byrx.net/so/1/%e4%b8%aa%e6%95%b0' title='涓暟'>涓暟

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绠€浠嬶細鍒楄〃鏄痯ython涓渶鍩烘湰鐨勬暟鎹粨鏋勪箣涓€锛屾瘡涓厓绱犻兘浼氳鍒嗛厤涓€涓暟瀛椾篃灏辨槸绱㈠紩锛屼害绉颁负涓嬫爣銆備粬鐨勭涓€涓厓绱犲搴旂殑绱㈠紩涓?span style="color: #ff0000">0锛?span style="color: #000000">绗簩涓搴旂殑绱㈠紩涓?/span>1,浠ユ绫绘帹銆?/span>

涓€,鍒楄〃鐨勫０鏄庝笌璧嬪€?/span>

#鍒楄〃鐨勫０鏄?/span>list1 = [鈥?/span>pisa鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>mianhuatang鈥?/span>]list2 = [鈥?/span>cat鈥?/span>,鈥?/span>dog鈥?/span>,鈥?/span>pig鈥?/span>]list3 = [鈥?/span>softdrink鈥?/span>,鈥?/span>wine鈥?/span>,鈥?/span>bear鈥?/span>]

浜岋紝鍒楄〃鐨勬煡璇?/strong>

鈥樷€樷€?/span>濡備綍璇诲彇鍒楄〃涓殑鍏冪礌锛?鈥樷€樷€?/span>list1 = [鈥?/span>pisa鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>mianhuatang鈥?/span>]
cat1 = list1[0] #pisacat2 = list1[1] #heitangcat3 = list[2] # mianhuatangcat4 = list[-1] # mianhuatangcat5 = list[-2] #heitangcat6 = list[-3] # pisa

涓夛紝鍒楄〃鐨勫垏鐗?/strong>

鈥樷€樷€?/span>鍒楄〃鐨勫垏鐗?鈥樷€樷€?/span>list = [鈥?/span>pisa鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]#鑾峰彇鍓嶄笁鍙尗getThreeCat = list[:3] 
getThreeCat = list[0:3]#鑾峰彇绗簩鍙尗鍜岀鍥涘彧鐚?heitang,lurougetSecondAndFourthCat = list[1:4:2] #[鈥榟eitang鈥?鈥榣urou鈥榏getSecondAndFourthCat = list[-4:-1:2]#鑾峰彇鏈€鍚庝竴鍙尗 panghuagetLastCat = list[-1]#璁╂暣涓悆璐у鏃忓弽杞?/span>getReverseCat = list[::-1]#[鈥榩anghua鈥? 鈥榣urou鈥? 鈥榤ianhuatang鈥? 鈥榟eitang鈥? 鈥榩isa鈥榏

鍥涳紝鍒楄〃娣诲姞鍏冪礌

鈥樷€樷€?/span>鍒楄〃娣诲姞鍏冪礌鐨勪笁绉嶆柟娉?insert(鎻掑叆) extend(杩唬娣诲姞) append(杩藉姞)鈥樷€樷€?/span>#鍒楄〃鐨勬坊鍔犱箣 appendlist1 = [鈥?/span>pisa鈥?/span>,鈥?/span>lurou鈥?/span>]list1.append(鈥?/span>mianhuatang鈥?/span>) #[鈥榩isa鈥?鈥榣urou鈥?鈥榤ianhuatang鈥榏#鍒楄〃鐨勮凯浠ｆ坊鍔?/span>list1 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>lurou鈥?/span>]list2 = [鈥?/span>heitang鈥?/span>,鈥?/span>panghua鈥?/span>]list1.extend(list2) # [鈥榩isa鈥? 鈥榤ianhuatang鈥? 鈥榣urou鈥? 鈥榟eitang鈥? 鈥榩anghua鈥榏list2.extend(list1) # [鈥榟eitang鈥? 鈥榩anghua鈥? 鈥榩isa鈥? 鈥榤ianhuatang鈥? 鈥榣urou鈥榏#鎸囧畾浣嶇疆娣诲姞insert(绱㈠紩,鍏冪礌) list1 = [鈥?/span>heitang鈥?/span>,鈥?/span>pisa鈥?/span>,鈥?/span>lurou鈥?/span>]list1.insert(1,鈥?/span>panghua鈥?/span>) # [鈥榟eitang鈥? 鈥榩anghua鈥? 鈥榩isa鈥? 鈥榣urou鈥榏

浜旓紝鍒楄〃鍒犻櫎鍏冪礌

鈥樷€樷€?/span>鍒楄〃鍒犻櫎鍏冪礌 pop,del,remove,clear浠ュ強鍒囩墖鐨勮垗寮?鈥樷€樷€?/span>#pop() 榛樿鍒犻櫎鏈€鍚庝竴涓厓绱狅紝骞惰繑鍥烇紝濡傛灉鎸囧畾绱㈠紩锛屽垯鍒犻櫎瀵瑰簲鐨勫€硷紝鍚庨潰鍏冪礌鐨勭储寮曡嚜鍔ㄥ噺涓€list = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]cat1 = list.pop() #panghuaprint(list) #[鈥榩isa鈥?鈥榩anghua鈥?鈥榟eitang鈥?鈥榣urou鈥榏list2 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]cat2  = list2.pop(2) # heitangprint(list2) #[鈥榩isa鈥?鈥榤ianhuatang鈥?鈥榣urou鈥?鈥榩anghua鈥榏#del 鏄垹闄ゆ暣涓垪琛紝涔熷氨鏄粠鍐呭瓨涓姽鍘昏繖涓垪琛ㄧ殑鎸囬拡list3 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]print(list3) #[鈥榩isa鈥?鈥榤ianhuatang,鈥榟eitang鈥?鈥榣urou鈥?鈥榩anghua鈥榏del list3print(list3) # NameError: name 鈥榣ist3鈥?is not defined#remove() 鏄?鍒犻櫎鍏冪礌锛屼竴娆′篃鍙兘鍒犻櫎涓€涓厓绱?杩斿洖鍊?Nonelist4 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]list4.remove(鈥?/span>pisa鈥?/span>)  #[鈥榤ianhuatang鈥? 鈥榟eitang鈥? 鈥榣urou鈥? 鈥榩anghua鈥榏#clear 娓呯┖鏁翠釜鍒楄〃list5 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]list5.clear() # []#鍒囩墖鍒犻櫎鐩稿簲鐨勫厓绱?/span>list6 =  [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>heitang鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>panghua鈥?/span>]list7 = list6[0:2] #  寰楀埌[鈥榩isa鈥?鈥榤ianhuatang鈥榏 鍒犻櫎浜唄eitang,lurou鍜宲anghua

鍏紝鍒楄〃鐨勬洿鏂?/span>

#閲嶆柊璧嬪€兼硶list1 = [鈥?/span>a鈥?/span>,鈥?/span>b鈥?/span>,鈥?/span>c鈥?/span>,鈥?/span>d鈥?/span>]list1[1] = 3;#[鈥榓鈥?3,鈥榗鈥?鈥榙鈥榏#鍙凯浠ｅ璞?/span>list2 = [鈥?/span>a鈥?/span>,鈥?/span>b鈥?/span>,鈥?/span>c鈥?/span>,鈥?/span>d鈥?/span>]list2[:2] = 鈥?/span>89鈥?/span> #[8,9,鈥榗鈥?鈥榙鈥榏list3 = [鈥?/span>a鈥?/span>,鈥?/span>b鈥?/span>,鈥?/span>c鈥?/span>,鈥?/span>d鈥?/span>]list3[:3] = 鈥?/span>56鈥?/span> #[鈥?鈥?鈥?鈥?鈥榙鈥榏 ?涓轰粈涔堟槸[鈥?鈥?鈥?鈥?鈥榙鈥榏鑰屼笉鏄痆鈥?鈥?鈥?鈥?鈥?鈥?鈥榙鈥榏鎴栬€匸鈥?鈥?鈥?鈥?鈥榗鈥?鈥榙鈥榏? 棣栧厛杩唬瀵硅薄鍙兘寰幆涓€娆★紝涔熸槸鈥?鈥樺拰鈥?鈥?鑰屽垏鐗囧彧鏄瑕嗙洊鈥榓鈥?鈥榖鈥?鈥榗鈥?鑰屾垜浠凯浠ｅ璞″彧鏈変袱浣嶏紝杩欐牱灏卞皯浜嗕竴浣嶏紝灏辫垗寮冩帀锛屽彉鎴愪簡[鈥?鈥?鈥?鈥?鈥榙鈥榏

涓冿紝鍒楄〃鐨勫唴缃嚱鏁?/span>

#鍒楄〃鐨勯暱搴?/span>list1 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>panghua鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>heitang鈥?/span>]cat_len = len(list1) # 5#鍒楄〃鐨刢opy 澶嶅埗涓€涓壇鏈粰鍏朵粬鍙橀噺list2 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>panghua鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>heitang鈥?/span>]list3 = list2.copy()print(list3) # [鈥榩isa鈥?鈥榤ianhuatang鈥?鈥榩anghua鈥?鈥榣urou鈥?鈥榟eitang鈥榏 闇€瑕佺壒鍒殑娉ㄦ剰python2.x 娌℃湁copy鏂规硶#鍒楄〃鐨刢ount 缁熻鍑虹幇鐨勬鏁?杩斿洖涓€涓狪ntegerlist4 = [鈥?/span>a鈥?/span>,鈥?/span>b鈥?/span>,鈥?/span>c鈥?/span>,鈥?/span>c鈥?/span>,鈥?/span>d鈥?/span>]list4.count(鈥?/span>c鈥?/span>) # 2#鍒楄〃鐨刬ndex 鏌ヨL.index(value, [start, [stop]]) 濡傛灉娌℃湁鍒欐姤閿?ValueError)list5 = [鈥?/span>pisa鈥?/span>,鈥?/span>mianhuatang鈥?/span>,鈥?/span>panghua鈥?/span>,鈥?/span>lurou鈥?/span>,鈥?/span>heitang鈥?/span>]list5.index(鈥?/span>panghua鈥?/span>) # 2list5.index(鈥?/span>heierduo鈥?/span>) # ValueError#sort    L.sort(key=None, reverse=False) 娌℃湁杩斿洖鍊?/span>list6 = [1,3,5,3,7,0]list6.sort() # [0, 1, 3, 3, 5, 7]list6.sort(reverse=True) # [7, 5, 3, 3, 1, 0]#reverse 鍙嶈浆 L.reverse() -- reverse *IN PLACE*list7 =  [鈥?/span>a鈥?/span>,鈥?/span>b鈥?/span>,鈥?/span>c鈥?/span>,鈥?/span>d鈥?/span>]list7.reverse() # [鈥榙鈥? 鈥榗鈥? 鈥榖鈥? 鈥榓鈥榏# append,clear,extend,insert,pop,remove,涓婇潰宸茬粡鎻愬強杩?/span>

python鍩虹涔嬪垪琛ㄧ瘒

鏍囩锛?a href='http://www.byrx.net/so/1/%e4%b8%aa%e6%95%b0' title='涓暟'>涓暟

鍘熸枃鍦板潃锛歨ttps://www.cnblogs.com/wuxiaoshi/p/9734323.html