C语言
```c
include
int main() {
int a, b, sum;
printf("请输入两个正整数:\n");
scanf("%d %d", &a, &b);
sum = a + b;
printf("%d + %d = %d\n", a, b, sum);
return 0;
}
```
C++
```cpp
include
int main() {
int a, b, sum;
std::cout << "请输入两个正整数:" << std::endl;
std::cin >> a >> b;
sum = a + b;
std::cout<< a << " + "<< b << " = " << sum << std::endl;
return 0;
}
```
Python
```python
a = int(input("请输入正整数A: "))
b = int(input("请输入正整数B: "))
sum = a + b
print(f"{a} + {b} = {sum}")
```
Java
```java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("请输入正整数A: ");
int a = scanner.nextInt();
System.out.print("请输入正整数B: ");
int b = scanner.nextInt();
int sum = a + b;
System.out.println(a + " + " + b + " = " + sum);
}
}
```
JavaScript (Node.js)
```javascript
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
rl.question('请输入正整数A: ', function(a) {
rl.question('请输入正整数B: ', function(b) {
const sum = parseInt(a) + parseInt(b);
console.log(`${a} + ${b} = ${sum}`);
rl.close();
});
});
```
这些代码示例均假设输入是两个正整数,并在输入不符合要求时输出`?`。你可以根据具体需求选择合适的编程语言和输入输出方式。