#定义一个列表
classmates =['Michael','Bob','Tracy','李三','Tracy',56] new = ['Rose','Jack']
#向classmates中下标为2处插入一个元素 classmates.insert(2,'Tom')
#使用append向末尾增加一个元素 classmates.append('Jack') classmates.extend(new) print(classmates) classmatesSet = set(classmates) classmatesSet.add('Jack') print(classmatesSet) print(list('ababcd'),tuple('ababcd'))
结果
#定义一个元组 tuple1 = (3,5,6,'q','b',1) print tuple1[2] print tuple1[-1] #使用in运算符检查是否存在某元素 print 1 in tuple1
#定义一个字典 dict1 = {'classname':'Tom','age':20,'sex':'Male'} #为一个已经存在的dictionary key赋值，将简单覆盖原有的值。 dict1['classname'] = 'b' #从字典中删除元素 del dict1['sex']
英文词频统计
strYoung = '''young for you Gala sunday's coming i wanna drive my car to your apartment with present like a star forecaster said the weather may be rainy hard but i know the sun will shine for us oh lazy seagull fly me from the dark i dress my jeans and feed my monkey banana then i think my age how old, skyline how far or we need each other in california you show me your body before night comes down i touch your face and promise to stay ever young on this ivory beach we kissed so long it seems that the passion's never gone you sing me your melody and i feel so please i want you to want me to keep your dream together we'll run wild by a summer symphony this is what we enjoyed not a fantasy the tin-man's surfing i wanna try my luck to the top of tide rip like just have some drugs i know you have no blame for my proud moonish heart welcome to the golden beatnik park oh diamond seashore drag me from the yard incredible sunward i watch as you're in photograph for camera your smile's so sweet, palm trees' so lush would you believe my honey it's califonia you show me your body before night comes down i touch your face and promise to stay ever young on this ivory beach we kissed so long it seems that the passion's never gone you sing me your melody and i feel so please i want you to want me to keep your dream together we'll run wild by a summer symphony - ''' strList = strYoung.split(' ') print(strList) strSet = set(strList) for word in strList: print(word,strList.count(word))
结果
