css

import sun.misc.Unsafe;import java.lang.reflect.Field;public class Main { private static Unsafe unsafe; public Main() { System.out.println("---构造函数---"); } private String str = "初始化的字符串"; public static void main(String...

示例public class Main{ public static void main(String[] args) { int size = 21000000; long start = System.currentTimeMillis(); for (int i = 0; i < size; i++) { String str = String.format("key: [%s], 不是一个 Lis...