public class test5 {
public static void main(String[]args) {
int x = 4,y=6,z=8;
boolean u=false;
u=!( (x >= --y || y++ < z-- )&& y == z );
System.out.println("u="+u);
public class test5 { public static void main(String[]args) { int x = 4,y=6,z=8; boolean u=false; u=!( (x >= --y || y++ =--y|y++<z--)&y==z); System.out.println("u="+u); 为什么结果是u=true u=false