取绝对值a=abs(-95)print(a)如果其中一个值为false，则全部为falsea=all([True,True,False])print(a)如果其中一个值为false为真，全部为真a=any([False,True,True])print(a)返回a=ascii('0x\10000')b=ascii('b\x19')的可打印对象字符串表示print(a,b)将整数转换为二进制字符串a=bin(95)print(a)将数据转换为八进制a=oct(95)print(a)将数据转换为十进制a=int(95)print(a)将整数转换为十六进制字符串a=hex(95)print(type(a))转换为布尔类型a=bool("")print(a)转换为字节形式bytesa=bytes("WuYongcong",encoding='utf-8')print(a)chr返回一个ascii码为整数的字符串，例如chr(97)返回一个带“a”的字符串，桉i的范围是0-255之间.a=chr(88)print(a)ord参数为ascii字符，返回值为对应的十进制整数a=ord("X")print(a)创建数据字典ret=dict({"wyc":2,"two":3})dict(zip(("one","two"),(2,3)))dict(one=2,two=1)print(ret)dir列出某类All可用方法a=dir(list)print(a)help查看帮助文档ret=help(list)print(ret)分别取商和余数a=divmod(9,5)print(a)计算值表达式a=eval('1+2*5')print(a)exec用于执行存储在字符串或文件中的python语句ret=exec(print("Hi,girl."))print(ret)filterfilterli=[1,2,3,4,5,6,7]a=filter(lambdax:x>3,li)print(a)float浮点型a=float(1)print(a)判断对象is不是int实数列，返回True和Falsea=5b=isinstance(a,int)print(b)globals返回全局变量locals返回当前局部变量name="wyc"defh1():a=1print(locals())h1()print(globals())map遍历序列并对序列中的每个元素进行操作sequence,最后得到一个新序列li=[11,22,33]deffunc1(arg):returnarg+1new_list=map(func1,li)foriinnew_list:print(i)max返回最大值maxmincollection返回集合mina=[1,2,3,4,5,6,7]s=max(a)n=min(a)print(s,n)pow返回x的y次方a=pow(2,10)print(a)t=pow(2,10,100)print(t)roundroundeda=round(9.5)print(a)sortedchar=["吴","123","1","25","a","b","c"]new_chat=sorted(char)print(new_chat)foriinnew_chat:print(bytes(i,encoding='utf-8'))suma的内容=sum([1,2,3,4,5])print(a)a=sum(range(6))print(a)__import__以字符串形式导入模块comm=input("Please:")ccas=__import__(comm)ccas.f1()需要拼接的时候加上fromlist=Truem=__import__("lib."+comm,fromlist=True)print(米）
