2019314兩個日期差值2

//兩個日期之間天數差的第二種計算方法 #include <iostream> #include <stdlib.h> #include <math.h> using namespace std; int xianzhi[2][13]={{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31

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