入了cs的坑4个月入了C语言，用1个月学黑马程序员的c++至重载，挺合口味爽的一批。
目录
黑马32（循环随机）猜数
#include<iostream>
#include<time.h>
#include<random>
using namespace std;
int main()
{
srand((unsigned int)time(NULL));
int num=rand() % 100,i=10,guess;
while (i--)
{
cout << "第"<<10-i<<"次，请猜1 - 100一个数：";
cin >> guess;
if (guess == num)
{
cout << "你猜对啦，游戏结束";
return 0;
}
cout << "猜错啦," ;
if (guess > num)
cout << "猜大了" << endl;
else
cout << "猜小了" << endl;
}
cout << "不好意思，10次机会用完了，游戏结束" << endl;
return 0;
}黑马34 水仙数
#include<iostream>
#include<time.h>
#include<random>
using namespace std;
int main()
{
srand((unsigned int)time(NULL));
int num=rand() % 100,i=10,guess;
while (i--)
{
cout << "第"<<10-i<<"次，请猜1 - 100一个数：";
cin >> guess;
if (guess == num)
{
cout << "你猜对啦，游戏结束";
return 0;
}
cout << "猜错啦," ;
if (guess > num)
cout << "猜大了" << endl;
else
cout << "猜小了" << endl;
}
cout << "不好意思，10次机会用完了，游戏结束" << endl;
return 0;
}黑马036敲桌子
/*打印1-100，含7或7倍数打印*/
#include<iostream>
using namespace std;
int main()
{
for (int i = 1; i < 101; i++)
{
cout << i;
if (!(i % 7) || i % 10 == 7 || i / 10 == 7)
cout << "敲桌子";
cout << endl;
}
return 0;
}黑马038乘法表
#include<iostream>
using namespace std;
int main()
{
for (int i = 1; i < 10; i++)
{
for (int j = 1; j <= i; j++)
cout << j << '*' << i << '=' << i * j << ' ';
cout << endl;
}
return 0;
}黑马044（数组）小猪称重
/*数组中记录5小猪体重，并输出最大*/
#include<iostream>
using namespace std;
int main()
{
cout << "请分别输入5只小猪的体重：";
int arr[5],max1=0xc0c0c0c0;
for (int i = 0; i < 5; i++)
{
cin >> arr[i];
max1 = max(max1, arr[i]);
}
cout << "最重为" << max1 << endl;
return 0;
}黑马044数组逆序
/*数组中记录5小猪体重，并输出最大*/
#include<iostream>
using namespace std;
int main()
{
cout << "请分别输入5数：";
int arr[5];
for (int i = 0; i < 5; i++)
cin >> arr[i];
for (int i = 0; i < 2; i++)
swap(arr[4 - i], arr[i]);
cout << "逆序后：";
for (int i = 0; i < 5; i++)
cout<<arr[i]<<' ';
return 0;
}黑马045冒泡排序
#include<iostream>
using namespace std;
int main()
{
cout << "请分别输入5数：";
int arr[5];
for (int i = 0; i < 5; i++)
cin >> arr[i];
for (int i = 1; i < 5; i++)
for (int j = 0; j < 5 - i; j++)
if (arr[j] > arr[j + 1])
swap(arr[j], arr[j + 1]);
cout << "冒泡排序后：";
for (int i = 0; i < 5; i++)
cout << arr[i] << ' ';
return 0;
}黑马049（二维数组）打印成绩
/*打印三名同学3科成绩*/
#include<iostream>
using namespace std;
int main()
{
char name[3][20];
int score[3][3];
for (int i = 0; i < 3; i++)
{
cout << "请输入第" << i + 1 << "名学生的姓名和语数英三科成绩:";
cin >> name[i]>>score[i][0]>>score[i][1] >> score[i][2];
}
cout << " 语文 数学 英语" << endl;
for (int i = 0; i < 3; i++)
cout << name[i] << " " << score[i][0] << " " << score[i][1] << " " << score[i][2] << endl;
return 0;
}黑马057指针大小
#include<iostream>
using namespace std;
int main()
{
cout << sizeof(int*);
return 0;
}黑马063（函数指针）冒泡排序
#include<iostream>
using namespace std;
void getnum(int* arr)
{
cout << "请分别输入10数：";
for (int i = 0; i < 10; i++)
cin >> arr[i];
}
void BubbleSort(int* arr)
{
for (int i = 1; i < 10; i++)
for (int j = 0; j < 10 - i; j++)
if (arr[j] > arr[j + 1])
swap(arr[j], arr[j + 1]);
}
void show(int* arr)
{
cout << "冒泡排序后：";
for (int i = 0; i < 10; i++)
cout << arr[i] << ' ';
}
int main()
{
int arr[10];
getnum(arr);
BubbleSort(arr);
show(arr);
return 0;
}黑马066结构体指针
#include<iostream>
#include<string>
using namespace std;
struct student
{
string name;
int age;
int score;
};
int main()
{
student stuarr[3] ={ {"张三",20,99},{"李四",19,88},{"王五",22,78}};
cout << stuarr->name <<' ' << stuarr->age<<' ' << stuarr->score;
return 0;
}黑马070结构体老师学生
/*老师：姓名加5学生数组，数组存3老师，学生：姓名分数，
函数给老师学生赋值并打印*/
#include<iostream>
#include<iomanip>
#include<string>
using namespace std;
struct student
{
string name;
int score;
};
struct teacher
{
string name;
student stu[5];
};
void gettea(teacher* tea)
{
for (int i = 0; i < 3; i++)
{
cout << "请输入第" << i + 1 << "名老师的姓名：";
cin >> tea[i].name;
for (int j = 0; j < 5; j++)
{
cout << "请输入该老师第" << j + 1 << "名学生的姓名及成绩：";
cin >> tea[i].stu[j].name>> tea[i].stu[j].score;
}
cout << endl;
}
}
void show(teacher* tea)
{
cout << "老师姓名 所带学生姓名及分数" << endl;
for (int i = 0; i < 3; i++)
{
cout<<setw(8) << tea[i].name<<' ';
for (int j = 0; j < 5; j++)
cout << tea[i].stu[j].name << tea[i].stu[j].score<<' ';
cout << endl;
}
}
int main()
{
teacher tea[3];
gettea(tea);
show(tea);
return 0;
}黑马071结构体英雄
/*5英雄：名 岁。冒泡年龄打印*/
#include<iostream>
#include<iomanip>
#include<string>
using namespace std;
struct hero
{
string name;
int age;
string sex;
};
void gethero(hero* h)
{
for (int i = 0; i < 5; i++)
{
cout << "请输入第" << i + 1 << "名英雄的姓名、年龄和性别：";
cin >> h[i].name >> h[i].age>>h[i].sex;
}
}
void BubbleSort(hero* h)
{
for (int i = 1; i < 5; i++)
for (int j = 0; j < 5 - i; j++)
if (h[j].age > h[j + 1].age)
swap(h[j], h[j + 1]);
}
void show(hero* h)
{
cout << "姓名 年龄 性别" << endl;
for (int i = 0; i < 5; i++)
cout << setw(4) << h[i].name <<setw(5) << h[i].age << setw(5) <<h[i].sex << endl;
}
int main()
{
hero h[5];
gethero(h);
BubbleSort(h);
show(h);
return 0;
}黑马p87堆区于函数创建
/*黑马p87堆区于函数创建*/
#include<iostream>
using namespace std;
int* func()
{
int* p = new int(10);
return p;
}
int main()
{
int* p = func();
cout << *p << endl << *p;
delete p;
int* arr = new int[10];
for (int i = 0; i < 10; i++)
{
arr[i] = i;
cout << arr[i] << endl;
}
delete[] arr;
return 0;
}黑马p89引用
/*黑马p89引用*/
#include<iostream>
using namespace std;
int main()
{
int a = 10, & b = a;
cout << a << endl << b << endl;
b = 200;
cout << a << endl << b;
return 0;
}黑马p92函数返回引用
/*黑马p92函数返回引用*/
#include<iostream>
using namespace std;
int& func()
{
static int a = 10;
return a;
}
int main()
{
int& b = func();
cout << b << endl << b << endl << func() << endl;
func() = 1000;
cout << b << endl << b << endl << func() << endl;
return 0;
}