什么是：fact * = i;

Question

为何使用此声明：fact*=i;。我无法理解，因为我是初学者。还有其他方法可以在while循环中编写相同的语句吗？

//This is my program for factorial using input from user.

import java.io.*;

public class factorialInput {

    public static void main(String[] args) throws IOException {
        int i = 1;
        int fact = 1;
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Enter any number:");
        int n = Integer.parseInt(br.readLine());
        while (i <= n) {
            fact *= i;
            i++;
        }
        System.out.println("Factorial of" + n + "!" + "=" + fact);
    }
}

Answer 1

fact*=i;相当于fact = fact * i;

来自tutorialpoints

* =是乘法AND赋值运算符，它将右操作数与左操作数相乘，并将结果赋值给左操作数