如何使用Python3实现嵌套List中的元素两两相乘 python中的list中多个有包含tuple的list，如...
python\u4e2d\u5982\u4f55\u6839\u636e\u5d4c\u5957\u5217\u8868\u5185\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f# -*- coding: utf-8 -*-import operatortarget_list = [["A",3],["B",2],["C",1]]'''sorted\u9ed8\u8ba4\u4e3a\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\uff0c\u5982\u679c\u4ece\u5927\u5230\u5c0f\uff0c\u8bf7\u4f7f\u7528:target_list.sort(key=operator.itemgetter(1), reverse=True) '''target_list.sort(key=operator.itemgetter(1)) print(target_list)
\u697c\u4e3b\u4f60\u597d\uff0c\u6309\u4ee5\u4e0a\u4ee3\u7801\u5c31\u53ef\u4ee5\u5f97\u5230\u60f3\u8981\u7684\u7ed3\u679c\u3002
python\u672c\u8eab\u8fd8\u63d0\u4f9b\u4e86\u975e\u5e38\u4e30\u5bcc\u7684\u6392\u5e8f\u529f\u80fd\uff0c\u8be5\u9700\u6c42\u8fd8\u6709\u53e6\u5916\u7684\u5f62\u5f0f\u80fd\u591f\u5b9e\u73b0\uff0c\u8bf7\u81ea\u884c\u9605\u8bfb\u5b98\u65b9\u6587\u6863\u7814\u7a76\u3002\u671b\u91c7\u7eb3\uff0c\u8c22\u8c22\uff01
\u53c2\u8003\u8d44\u6599\uff1ahttps://docs.python.org/2/howto/sorting.html#sortinghowto
\u6211\u7528Python3\uff0c\u6700\u540e\u4e00\u884c\u7a0d\u5fae\u6539\u4e86\u4e00\u4e0b\uff0c\u6267\u884c\u4e86\u770b\uff0c\u52a0\u4e0a\u4e86\u5440
tagged_list = [[('I',0),('feel',0.2),('happy',0.8),('and',0),('excited',0.4),('today',0)],[('I',0),('feel',0),('happy',1),('and',0),('excited',1),('today',0)],[('I',0),('feel',0),('happy',1),('and',0),('excited',1),('today',0)]]d ={}for word_list in tagged_list: for (word, score) in word_list: if word in d: d[word] = d[word] + int(score) else: d[word] = d.setdefault(word, 0) + int(score)print(*map(tuple, d.items()))\u6267\u884c\u7ed3\u679c
('and', 0) ('today', 0) ('I', 0) ('feel', 0) ('excited', 2) ('happy', 2)
\u7b2c\u4e09\u4e2a\u5c31\u662f
一、
AList = [[5,8], [3,6], [4,5], [3,8],[6,2]]
for i in range(len(AList)):
AList.append(AList[0][0]*AList[0][1])
temp=AList.pop(0)
print("AList="+str(AList))
二、
AList = [[5,8], [3,6], [4,5], [3,8],[6,2]]
for i in AList:
AList_Fist.append(i[0])
print("AList_Fist="+str(AList_Fist))
绛旓細鍙互宓屽锛岀粰浣犱釜渚嬪瓙锛鐢╬ython3鍙互鐩存帴杩愯 !/usr/local/bin/python3 -*- coding:utf-8 -*- def consum(man):print("1111111111111111")while True:print("22222222222:%s need foods"%man)bone = yield print("33333333333:%s eat %s foods"%(man,bone))def product(obj):print("...
绛旓細绋嬪簭鍒嗘瀽锛(a>b)?a:b杩欐槸鏉′欢杩愮畻绗︾殑鍩烘湰渚嬪瓙銆傜▼搴忔簮浠ｇ爜锛氬疄渚 !/usr/bin/python -*- coding: UTF-8 -*- score = int(raw_input('杈撳叆鍒嗘暟:\n'))if score >= 90:grade = 'A'elif score >= 60:grade = 'B'else:grade = 'C'print '%d 灞炰簬 %s' % (score,grade)浠ヤ笂瀹炰緥...
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绛旓細鏂规硶锛歞el dict2['name']#鍒犻櫎閿负鈥渘ame鈥濈殑鏉＄洰銆俤ict2.clear()#鍒犻櫎 dict2 涓墍鏈夌殑鏉＄洰 del dict2#鍒犻櫎鏁翠釜 dict2 瀛楀吀 dict2.pop('name')#鍒犻櫎骞惰繑鍥為敭涓衡渘ame鈥濈殑鏉＄洰锛
绛旓細浠ｇ爜濡備笅锛歴tudent = [["001","寮犱笁","鐢"],["002","鏉庡洓","鐢"],["003","鐜嬩簲","濂"]]text = input("鎬у埆锛")count = 0 for i in student:if text == i[2]:count+=1 print("鎬у埆{0}鍏辨湁{1}浜".format(text,count))
绛旓細鎸夌収浣犵殑瑕佹眰缂栧啓鐨勫瓧鍏稿唴鐩稿悓key鍚堝苟鐨Python绋嬪簭濡備笅 l=[{'a':1,'b':'haha'},{'a':3,'b':'haha'},{'a':2,'b':'xiaoming'}]result=[]temp=[]for i in range(len(l)):flag=False suma=l[i]['a']b=l[i]['b']for j in range(i+1,len(l)):if l[i]['b']==l...
