c++ 实例 - 创建各类三角形图案
创建各类三角形图案。
实例
#include <iostream>using namespace std;
int main() { int rows;
cout << "输入行数: ";
cin >> rows;
for(int i = 1; i <= rows; ++i) { for(int j = 1; j <= i; ++j) { cout << "* ";
} cout << "n";
} return 0;}
以上程序执行输出结果为:
* * * * * * * * * * * * * * *
实例
#include <iostream>using namespace std;
int main() { int rows;
cout << "输入行数: ";
cin >> rows;
for(int i = 1; i <= rows; ++i) { for(int j = 1; j <= i; ++j) { cout << j << " ";
} cout << "n";
} return 0;}
以上程序执行输出结果为:
1 1 2 1 2 3 1 2 3 4 1 2 3 4 5
实例
#include <iostream>using namespace std;
int main() { char input, alphabet = 'a';
cout << "输入最后一个大写字母: ";
cin >> input;
for(int i = 1; i <= (input-'a'+1); ++i) { for(int j = 1; j <= i; ++j) { cout << alphabet << " ";
} ++alphabet;
cout << endl;
} return 0;}
以上程序执行输出结果为:
a b b c c c d d d d e e e e e
实例
#include <iostream>using namespace std;
int main() { int rows;
cout << "输入行数: ";
cin >> rows;
for(int i = rows; i >= 1; --i) { for(int j = 1; j <= i; ++j) { cout << "* ";
} cout << endl;
}
return 0;}
以上程序执行输出结果为:
* * * * * * * * * * * * * * *
实例
#include <iostream>using namespace std;
int main() { int rows;
cout << "输入行数: ";
cin >> rows;
for(int i = rows; i >= 1; --i) { for(int j = 1; j <= i; ++j) { cout << j << " ";
} cout << endl;
}
return 0;}
以上程序执行输出结果为:
1 2 3 4 5 1 2 3 4 1 2 3 1 2 1
实例
#include <iostream>using namespace std;
int main() { int space, rows;
cout <<"输入行数: ";
cin >> rows;
for(int i = 1, k = 0; i <= rows; ++i, k = 0) { for(space = 1; space <= rows-i; ++space) { cout <<" ";
}
while(k != 2*i-1) { cout << "* ";
++k;
} cout << endl;
}
return 0;}
以上程序执行输出结果为:
*
* * *
* * * * *
* * * * * * *
* * * * * * * * * 实例
#include <iostream>using namespace std;
int main() { int rows, count = 0, count1 = 0, k = 0;
cout << "输入行数: ";
cin >> rows;
for(int i = 1; i <= rows; ++i) { for(int space = 1; space <= rows-i; ++space) { cout << " ";
++count;
}
while(k != 2*i-1) { if (count <= rows-1) { cout << i+k << " ";
++count;
} else { ++count1;
cout << i+k-2*count1 << " ";
} ++k;
} count1 = count = k = 0;
cout << endl;
} return 0;}
以上程序执行输出结果为:
1
2 3 2
3 4 5 4 3
4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5 实例
#include <iostream>using namespace std;
int main() { int rows;
cout << "输入行数: ";
cin >> rows;
for(int i = rows; i >= 1; --i) { for(int space = 0; space < rows-i; ++space) cout << " ";
for(int j = i; j <= 2*i-1; ++j) cout << "* ";
for(int j = 0; j < i-1; ++j) cout << "* ";
cout << endl;
}
return 0;}
以上程序执行输出结果为:
* * * * * * * * *
* * * * * * *
* * * * *
* * *
* 实例
#include <iostream>using namespace std;
int main() { int rows, coef = 1;
cout << "enter number of rows: ";
cin >> rows;
for(int i = 0; i < rows; i++) { for(int space = 1; space <= rows-i; space++) cout <<" ";
for(int j = 0; j <= i; j++) { if (j == 0 || i == 0) coef = 1;
else coef = coef*(i-j+1)/j;
cout << coef << " ";
} cout << endl;
}
return 0;}
以上程序执行输出结果为:
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1 实例
#include <iostream>using namespace std;
int main() { int rows, number = 1;
cout << "输入行数: ";
cin >> rows;
for(int i = 1; i <= rows; i++) { for(int j = 1; j <= i; ++j) { cout << number << " ";
++number;
}
cout << endl;
}
return 0;}
以上程序执行输出结果为:
1 2 3 4 5 6 7 8 9 10
【说明】:本文章由站长整理发布,文章内容不代表本站观点,如文中有侵权行为,请与本站客服联系(QQ:254677821)!