Python基础之 List

1# List of string 
2listOfStrings = ['Hi' , 'hello', 'at', 'this', 'there', 'from']

1if 'at' in listOfStrings :
2    print("Yes, 'at' found in List : " , listOfStrings)
3-----------------------------------------------------------
4if 'time' not in listOfStrings :
5    print("Yes, 'time' NOT found in List : " , listOfStrings)

1if listOfStrings.count('at') > 0 :
2    print("Yes, 'at' found in List : " , listOfStrings)

1result = any(len(elem) == 5 for elem in listOfStrings)
2
3if result:
4    print("Yes, string element with size 5 found")

1# List of string 
2list1 = ['Hi' ,  'hello', 'at', 'this', 'there', 'from']
3
4# List of string
5list2 = ['there' , 'hello', 'Hi']

1result =  all(elem in list1  for elem in list2)
2
3if result:
4    print("Yes, list1 contains all elements in list2")    
5else:
6    print("No, list1 does not contains all elements in list2")

1result =  any(elem in list1  for elem in list2)
2
3if result:
4    print("Yes, list1 contains any elements of list2")    
5else :
6    print("No, list1 contains any elements of list2")

1listOfStrings1 = ['Hi'] * 10

1listOfStrings2 = ['Hi' for i in range(10)]

1wordList = ['Hi' , 'hello', 'at', 'this', 'there', 'from']

1for word in wordList:
2    print(word)

1i = 0
2sizeofList = len(wordList) 
3while i < sizeofList :
4    print(wordList[i]) 
5    i += 1

1for  i in range(len(wordList)) :
2    print(wordList[i])

1[print(i) for i in wordList]

1# List of string 
2list1 = ['Hi' ,  'hello', 'at', 'this', 'there', 'from']

1list1.insert(3, 'why')

1list1.insert(0, 'city')

1list1 = ['city', 'Hi', 'hello', 'at', 'why', 'this', 'there', 'from']
2
3list2 = [3,5,7,1]

1for elem in reversed(list2) :
2    list1.insert(3, elem)

1list1 = list1[:3] + list2 + list1[3:]

1wordFreq = [ ('the' , 34) , ('at' , 23), ('should' , 1) , ('from' , 3) ]

1wordFreq.sort()

1wordFreq.sort(key=lambda elem: elem[1])