情人节，在您的亲人的心脏上写下一条讯息，表达您对他们的感受。不要错过让他们感到惊讶的时刻。
本文演示了使他们惊讶的代码。所有<3的程序员的挚爱致以最良好的祝愿
下面是代码。
C++
// C++ code to print happy valentine's
// day.
#include
using namespace std;
int main() {
// initializing variables and size
double a, b, n = 10;
// initializing String to print in heart
string message = " HappY Valentines DaY <3 ";
// Position from where from top
// message box would be placed.
int print_message = 4;
// add space if message length is odd
if (message.length() % 2 != 0)
message += " ";
// outer loop to adjust length of upper
// part message is not handled in this part
for (a = 0; a < n; a++) {
// to print space and variable accordingly
for (b = 0; b <= 4 * n; b++) {
// computing distance to print variable
double distance1 = sqrt(pow(a - n, 2) + pow(b - n, 2));
double distance2 = sqrt(pow(a - n, 2) + pow(b - 3 * n, 2));
if (distance1 < n + 0.5 || distance2 < n + 0.5)
cout << "S";
else
cout << " ";
}
// ending line after each iteration
cout << "\n";
}
// printing the message part
// and lower part of heart.
// outer loop handles
// depth of the heart.
for (a = 1; a < 2 * n; a++) {
// for getting the lower curve of heart
for (b = 0; b < a; b++)
cout << " ";
// inner loop
// handles the message and spaces accordingly
for (b = 0; b < 4 * n + 1 - 2 * a; b++) {
// checks if the height is in range of message
// space
if (a >= print_message - 1 && a <= print_message + 1) {
int point = b - (4 * n - 2 * a - message.size()) / 2;
// prints message after leaving appropriate space
if (point < message.size() && point >= 0) {
if (a == print_message)
cout << message[point];
else
cout << " ";
}
else
cout << "S";
}
else
cout << "S";
}
cout << endl;
}
} Java
// Java code to print happy valentine's day.
class GFG {
public static void main(String[] args) {
// initializing variables and size
double a, b, n = 10;
// initializing String to print in heart
String message = " HappY Valentines DaY <3 ";
// Position from where from top
// message box would be placed.
int print_message = 4;
// add space if message length is odd
if (message.length() % 2 != 0)
message += " ";
// outer loop to adjust length of upper
// part message is not handled in this part
for (a = 0; a < n; a++) {
// to print space and variable accordingly
for (b = 0; b <= 4 * n; b++) {
// computing distance to print variable
double distance1 = Math.sqrt(Math.pow(a - n, 2)
+ Math.pow(b - n, 2));
double distance2 = Math.sqrt(Math.pow(a - n, 2)
+ Math.pow(b - 3 * n, 2));
if (distance1 < n + 0.5 || distance2 < n + 0.5)
System.out.print("S");
else
System.out.print(" ");
}
// ending line after each iteration
System.out.println();
}
// printing the message part
// and lower part of heart.
// outer loop handles
// depth of the heart.
for (a = 1; a < 2 * n; a++) {
// for getting the lower curve of heart
for (b = 0; b < a; b++)
System.out.print(" ");
// inner loop handles the message
// and spaces accordingly
for (b = 0; b < 4 * n + 1 - 2 * a; b++) {
// checks if the height is in range
// of message space
if (a >= print_message - 1 &&
a <= print_message + 1) {
double point = b - (4 * n - 2 * a
- message.length()) / 2;
// prints message after leaving
// appropriate space
if (point < message.length() &&
point >= 0) {
if (a == print_message)
System.out.print
(message.charAt((int)point));
else
System.out.print(" ");
}
else
System.out.print("S");
}
else
System.out.print("S");
}
System.out.println();
}
}
}
// This code is contributed by Anant Agarwal.Python3
# Python3 code to print happy valentine's
# day
import math
n = 10
# Initializing String to print in heart
message = " HappY Valentines DaY <3 "
# Position from where from top
# message box would be placed.
print_message = 4
# Add space if message length is odd
if (len(message) % 2 != 0):
message += " "
# Outer loop to adjust length of upper
# part message is not handled in this part
for a in range(n):
# To print space and variable accordingly
for b in range(4 * n + 1):
# Computing distance to print variable
distance1 = math.sqrt(pow(a - n, 2) +
pow(b - n, 2))
distance2 = math.sqrt(pow(a - n, 2) +
pow(b - 3 * n, 2))
if (distance1 < n + 0.5 or
distance2 < n + 0.5):
print("S", end = "")
else:
print(" ", end = "")
# Ending line after each iteration
print()
# Printing the message part and lower
# part of heart. Outer loop handles
# depth of the heart.
for a in range(1, 2 * n):
# For getting the lower curve of heart
for b in range(a):
print(" ", end = "")
# Inner loop
# handles the message and spaces accordingly
for b in range(4 * n + 1 - 2 * a):
# Checks if the height is in range of
# message space
if (a >= print_message - 1 and
a <= print_message + 1):
point = b - (4 * n - 2 *
a - len(message)) // 2
# Prints message after leaving
# appropriate space
if (point < len(message) and point >= 0):
if (a == print_message):
print(message[point], end = "")
else:
print(" ", end = "")
else:
print("S", end = "")
else:
print("S", end = "")
print()
# This code is contributed by subhammahato348C#
// C# code to print happy valentine's day.
using System;
class GFG
{
public static void Main()
{
// initializing variables and size
double a, b, n = 10;
// initializing String to print in heart
string message = " HappY Valentines DaY <3 ";
// Position from where from top
// message box would be placed.
int print_message = 4;
// add space if message length is odd
if (message.Length % 2 != 0)
message += " ";
// outer loop to adjust length of upper
// part message is not handled in this part
for (a = 0; a < n; a++) {
// to print space and variable accordingly
for (b = 0; b <= 4 * n; b++) {
// computing distance to print variable
double distance1
= Math.Sqrt(Math.Pow(a - n, 2)
+ Math.Pow(b - n, 2));
double distance2
= Math.Sqrt(Math.Pow(a - n, 2)
+ Math.Pow(b - 3 * n, 2));
if (distance1 < n + 0.5
|| distance2 < n + 0.5)
Console.Write("S");
else
Console.Write(" ");
}
// ending line after each iteration
Console.WriteLine();
}
// printing the message part
// and lower part of heart.
// outer loop handles
// depth of the heart.
for (a = 1; a < 2 * n; a++) {
// for getting the lower curve of heart
for (b = 0; b < a; b++)
Console.Write(" ");
// inner loop handles the message
// and spaces accordingly
for (b = 0; b < 4 * n + 1 - 2 * a; b++)
{
// checks if the height is in range
// of message space
if (a >= print_message - 1
&& a <= print_message + 1)
{
double point = b
- (4 * n - 2 * a - message.Length)
/ 2;
// prints message after leaving
// appropriate space
if (point < message.Length
&& point >= 0) {
if (a == print_message)
Console.Write(
message[(int)point]);
else
Console.Write(" ");
}
else
Console.Write("S");
}
else
Console.Write("S");
}
Console.WriteLine();
}
}
}
// This code is contributed by subhammahato348输出：
SSSSSSS SSSSSSS
SSSSSSSSSSS SSSSSSSSSSS
SSSSSSSSSSSSS SSSSSSSSSSSSS
SSSSSSSSSSSSSSS SSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSS SSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSS SSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSS SSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSS SSSSS
SSS HappY Valentines DaY <3 SSSS
SS SSS
SSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSS
SSSSSSSSSSSSS
SSSSSSSSSSS
SSSSSSSSS
SSSSSSS
SSSSS
SSS资料来源：
- https://www.geeksforgeeks.org/printing-heart-pattern-c/
- 托恩(Torne)在https://stackoverflow.com/questions/20075775/print-heart-shape-with-words-inside上的回答
注意：最好使用N至少8的值。您可以更改需要使用的字符(在上述情况下为S)。
想要从精选的最佳视频中学习并解决问题，请查看有关从基础到高级C++的C++基础课程以及有关语言和STL的C++ STL课程。要完成从学习语言到DS Algo等的更多准备工作，请参阅“完整面试准备课程” 。