一、列表(习惯了OC,总想把它叫成数组):
names = ["ZhangYang","GuYun","XiangPeng","CuLiangChen"] names.append("LeiHaiDong")#添加 names.insert(1,"ChenRongHua")#插入 names[2] = "XieDi"#修改 #删除 names.remove("ChenRongHua") #del names[1] or names.pop(1) print(names) print(names[0],names[2]) print(names[1:3]) #切片 print(names[-2:]) #切片 print(names[:3]) #切片 print(names.index("XieDi")) names.append("ZhangYang") print(names.count("ZhangYang")) names.reverse()#反转 names.sort()#排序 names2 = [1,2,3,4] names.extend(names2)
二、字符串:
name = "my name is alex"print(name.capitalize())#首字母大写print(name.count("a"))print(name.center(50,"-"))print(name.endswith("ex"))#判断以ex结尾print(name.find("name"))#取索引 用于切片 print(name[name.find("name"):])string = "my name is {name} and I am {age} years old"print(string.format(name = 'alex',age = 23))print(string.format_map({ 'name':'alex','age':23}))print('1A'.isdigit())#判断是否为整数print('+'.join(['1','2','3','4']))print(name.ljust(50,'*'))print(name.rjust(50,'*'))print('Alex'.lower())print('Alex'.upper())print('\nAlex\n'.strip())#去换行和空格p = str.maketrans("abcdef","123456")print("alex li".translate(p)) #用p加密
print("alex li".replace('l','L',1))#替换 print("alex li".rfind('l'))
三、字典:
info = { 'stu1101':"TengLan Wu",'stu1102':"LongZe",'stu1103':"XiaoZe"}info["stu1101"] = "武藤兰"info["stu1104"] = "CangJingKong"del info["stu1101"] #info.pop("stu1101")print(info.get('stu1103'))print('stu1104' in info)print(info.values())print(info.keys())info.setdefault("stu1105","TengLan Wu")b = { 'stu1101':"Alex",1:3,2:5}info.update(b)print(info.items())c = dict.fromkeys([6,7,8],"test")