1、给一个日期,输出与 20190218 之间相差的天数 #include <iostream> using namespace std; int days[2][13] = { {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31} }; bool isLeapYear(int year) { return year % 400 == 0 || year % 4 == 0 &a...