c++风格的流输出的python实现！

import sys
import time

class ostream:
    def __int__(self,file):
        self.file=file

    def __lshift__(self,obj):                                                 #对运算符“<<“进行重载
        self.file.write(str(obj))
        return self

cout=ostream(sys.stdout)                                                #标准输出流cout
cerr=ostream(sys.stderr)                                                 #标准错误输出cerr
endl='\n'

def test():
    cout <<'This is a test!'<<endl<<'Test ok!'<<endl<<time.ctime()

if __name__=='__main__'
    test0