【单选题】下面代码的输出结果是 a = [1, 2, 3] if isinstance(a, float): print("{} is float".format(a)) else: print("{} is not float".format(a))
【单选题】下列关于母乳喂养的方法中, 不正确 的是
【简答题】下列Python语句的输出结果是_______。 print("1".rjust(20," ")) print(format("121"," >20")) print(format("12321"," >20"))