1.函数的值传递
void swap(int num1, int num2) {
int temp;
cout << "交换前的次序为：" << endl;
cout<<"num1" << "=" <<num1 << endl;
cout << "num2" << "=" << num2 << endl;
temp = num1;
num1 = num2;
num2 = temp;
cout<<"交换后的次序为：" << endl;
cout << "num1" << "=" << num1 << endl;
cout << "num2" << "=" << num2 << endl;
}
int main() {
int num1, num2;
cout<<"请输入需要交换的数字1" << endl;
cin >> num1;
cout << "请输入需要交换的数字2" << endl;
cin >> num2;
swap(num1, num2);
2.打印99乘法表
/*int i, j;
for (i = 1; i <= 9; i++)
{
for (j = 1; j <= i; j++)
{
cout << j << "*" << i << "=" << j * i << " ";
}
cout << endl;
}*/
3.输出三科的总成绩
/*int scores[3][3]{
{90,100,80},
{80,90,100},
{80,80,100}
};
string names[3] = { "张三","李四","王二" };
string subjects[3] = {"英语","语文","数学"};
int i, j;
for (i = 0; i < 3; i++) {
int sum = 0;
for (j = 0; j < 3; j++) {
sum += scores[i][j];
cout << subjects[j] << " " <<scores[i][j] << " ";
}
cout <<" " << "所以" << names[i] << "的总成绩为：" << sum << endl;
cout << endl;
}*/
`
