下面代码正确拼接成一句话:“这里有7张蓝票一张红票都没有” 的是?slogan = '这里有'number = '7.8'unit = '张'sentence = '蓝票一张红票都没有'
A:word = slogan + str(int(float(number))) + unit+ sentence
B:word = slogan + str(float(number)) + unit+ sentence
C:word = slogan + str(number) + unit+ sentence
D:word = slogan + str(int(number)) + unit+ sentence
给列表 a=[1,2,3] 添加元素 4 的代码是:a=a.append(4)print(a)