C、C++、Java 和 C# 中的前后递增运算符行为 [重复]

前后递增运算符的行为

c
#include 
int main() {
    int i = 5;
    printf("前递增运算符示例：\n");
    printf("i = %d\n", ++i);
    printf("i = %d\n\n", i);
    int j = 5;
    printf("后递增运算符示例：\n");
    printf("j = %d\n", j++);
    printf("j = %d\n", j);
    return 0;
}

前递增运算符示例：
i = 6
i = 6
后递增运算符示例：
j = 5
j = 6

cpp
#include 
int main() {
    int i = 5;
    std::cout << "前递增运算符示例：" << std::endl;
    std::cout << "i = " << ++i << std::endl;
    std::cout << "i = " << i << std::endl << std::endl;
    int j = 5;
    std::cout << "后递增运算符示例：" << std::endl;
    std::cout << "j = " << j++ << std::endl;
    std::cout << "j = " << j << std::endl;
    return 0;
}

前递增运算符示例：
i = 6
i = 6
后递增运算符示例：
j = 5
j = 6

java
public class IncrementExample {
    public static void main(String[] args) {
        int i = 5;
        System.out.println("前递增运算符示例：");
        System.out.println("i = " + ++i);
        System.out.println("i = " + i + "\n");
        int j = 5;
        System.out.println("后递增运算符示例：");
        System.out.println("j = " + j++);
        System.out.println("j = " + j);
    }
}

前递增运算符示例：
i = 6
i = 6
后递增运算符示例：
j = 5
j = 6

csharp
using System;
class Program {
    static void Main(string[] args) {
        int i = 5;
        Console.WriteLine("前递增运算符示例：");
        Console.WriteLine("i = " + ++i);
        Console.WriteLine("i = " + i + "\n");
        int j = 5;
        Console.WriteLine("后递增运算符示例：");
        Console.WriteLine("j = " + j++);
        Console.WriteLine("j = " + j);
    }
}

前递增运算符示例：
i = 6
i = 6
后递增运算符示例：
j = 5
j = 6