Python
```python
a = int(input("请输入第一个数:"))
b = int(input("请输入第二个数:"))
c = int(input("请输入第三个数:"))
max_value = max(a, b, c)
print(f"最大数是 {max_value}.")
```
Java
```java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入第一个数:");
int a = scanner.nextInt();
System.out.println("请输入第二个数:");
int b = scanner.nextInt();
System.out.println("请输入第三个数:");
int c = scanner.nextInt();
int max_value = Math.max(a, Math.max(b, c));
System.out.println("最大数是 " + max_value + ".");
}
}
```
C++
```cpp
include include int main() { int a, b, c; std::cout << "请输入第一个数:"; std::cin >> a; std::cout << "请输入第二个数:"; std::cin >> b; std::cout << "请输入第三个数:"; std::cin >> c; int max_value = std::max({a, b, c}); std::cout << "最大数是 " << max_value << "." << std::endl; return 0; } ``` C ```c include int max(int a, int b, int c) { int max_value = a; if (b > max_value) max_value = b; if (c > max_value) max_value = c; return max_value; } int main() { int a, b, c; printf("请输入三个整数,用空格分隔:"); scanf("%d %d %d", &a, &b, &c); int max_value = max(a, b, c); printf("最大值是:%d", max_value); return 0; } ``` JavaScript ```javascript let a = parseInt(prompt("请输入第一个数:")); let b = parseInt(prompt("请输入第二个数:")); let c = parseInt(prompt("请输入第三个数:")); let max_value = Math.max(a, b, c); alert("最大数是 " + max_value + "."); ``` 这些示例展示了如何在不同编程语言中接收用户输入的三个整数,并找出其中的最大值。你可以选择适合你当前使用的编程语言的方法来实现这一功能。