59 lines
945 B
C++
59 lines
945 B
C++
#include<iostream>
|
|
#include<windows.h>
|
|
|
|
using namespace std;
|
|
|
|
void homework1();
|
|
void homework2();
|
|
|
|
int main(){
|
|
int choose;
|
|
cout <<"请选择"<<endl;
|
|
cout <<"1.输出3的倍数"<<endl;
|
|
cout <<"2.未知"<<endl;
|
|
cout <<"3.退出"<<endl;
|
|
cout <<">>>";
|
|
cin >>choose;
|
|
|
|
if (choose == 1)
|
|
{
|
|
homework1();
|
|
}else if (choose == 2)
|
|
{
|
|
homework2;
|
|
}else if (choose == 3)
|
|
{
|
|
return 0;
|
|
}else
|
|
{
|
|
cout <<"未知的选项"<<endl;
|
|
Sleep(1520);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void homework1(){
|
|
cout <<"模式 : 1"<<endl;
|
|
Sleep(1250);
|
|
int n;
|
|
cin >> n;
|
|
for (int i = 3; i < n; i += 3) {
|
|
cout << i << " ";
|
|
}
|
|
}
|
|
|
|
void homework2(){
|
|
cout <<"模式 : 2"<<endl;
|
|
Sleep(1250);
|
|
|
|
for (char c = 'a'; c <= 'z'; c++) {
|
|
cout << c;
|
|
}
|
|
cout << endl;
|
|
|
|
for (char c = 'Z'; c >= 'A'; c--) {
|
|
cout << c;
|
|
}
|
|
|
|
} |