摘要：
leap year: 1. 能被400整除的是闰年 2. 不能被100整除但能被4整除的是闰年 if a year is divisible by 4 and not divisible by 100 or divisible by 400,it is a leap year Given a yea 阅读全文
摘要：
python char to int: ord(character) int to char: chr(int_num) Convert a lowercase character to uppercase. Example 1: Input: 'a' Output: 'A' Example 2: 阅读全文
摘要：
class Solution: """ @param a: An integer @param b: An integer @return: The sum of a and b """ def aplusb(self, a, b): # write your code here if b == 0 阅读全文