【python】 The different between ' %r ' and ' %s ' for example: test = """hello, world""" print "this is test1: %s" %test print "this is test2: %r" %test 输出: this is test1: hello, world this is test2: 'hello, world' 由此可见,在python中格式化字符%r,表示打印的是对象,什么都打印