python编程中cmp()函数是什么意思？

Question

python编程中cmp()函数是什么意思？

Answer 1

cmp( x, y)

Compare the two objects x and y and return an integer according to the outcome. The return value is negative if x < y, zero if x == y and strictly positive if x > y.
比较2个对象，前者小于后者返回-1，相等则返回0，大于后者返回1.