python零基础学习笔记（十）-AttributeError: ‘list‘ object has no attribute ‘format‘解决办法

students2 = ['a', 'b', 'c', 'd']
print('new students are: ' + str(students2))
print('new students are: ' + students2.format(students2))

时，执行第二个语句结果为：
new students are: [‘a’, ‘b’, ‘c’, ‘d’]

而执行第三个语句结果报错：
AttributeError: ‘list’ object has no attribute ‘format’

这是由于列表没有format的用法。

此时去掉students2.即可，即：

print('new students are: ' + format(students2))

结果为：
new students are: [‘a’, ‘b’, ‘c’, ‘d’]
输出跟上一个语句一致