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#1 Created at ... [Delete] [Delete and Lock User]

def by_name(t): return t[0].lower()

def by_name(t): return -t[1]

#2 Created at ... [Delete] [Delete and Lock User]

秀！

#3 Created at ... [Delete] [Delete and Lock User]

秀！

#4 Created at ... [Delete] [Delete and Lock User]

能不能麻烦大佬解释一下-t[1]是啥意思...为啥这么用

#5 Created at ... [Delete] [Delete and Lock User]

-1[t] 的意思是先把列表里的数变负数啊然后就可以按照老师的要求进行排序

#6 Created at ... [Delete] [Delete and Lock User]

厉害啊

#7 Created at ... [Delete] [Delete and Lock User]

秀

#8 Created at ... [Delete] [Delete and Lock User]

t[0].lower()是错误的，排序结果可以看出直接t[0]即可。因为t[0].lower()返回的是函数！

#9 Created at ... [Delete] [Delete and Lock User]

应该学学数据结构

#10 Created at ... [Delete] [Delete and Lock User]

厉害自己都没能想出来啊啊啊啊多学习