public class Sample { public static void main(String[] args) { int num1 = 10, num2 = 20; int num3 = 5, num4 = 7; System.out.println(num1++); System.out.println(num1++); System.out.println(num1); System.out.println(++num2); System.out.println(num2); System.out.println(num3--); System.out.println(num3); System.out.println(--num4); System.out.println(num4); } } OUTPUT: 10 11 12 21 21 5 4 6 6
java ++和--
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