OC之谓词

////  main.m//  谓词////  Created by New-World on 13-11-6.//  Copyright (c) 2013年 Gary. All rights reserved.//#import <Foundation/Foundation.h>#import "Person.h"int main(int argc, const char * argv[]){    @autoreleasepool {        NSMutableArray *array=[NSMutableArray array];        for (int i=0; i<10; i++) {            Person *person=[[Person alloc]init];            if (i<5) {                person.name=[NSString stringWithFormat:@"jack-%d",i];            }            else{                person.name=[NSString stringWithFormat:@"tom-%d",i];            }            NSNumber *a=[person age];            int s=[a intValue];            [person setAge:@(i+s)];            [array addObject:person];            [person release];        }                                                        //判断是否满足条件        //NSArray *inArray=@[@"tom-8",@"jack-3",@"jack-2"];        //NSPredicate *predicate=[NSPredicate predicateWithFormat:@"age<25"];        //NSPredicate *predicate=[NSPredicate predicateWithFormat:@"name in %@",inArray];//名字是否在数组inArray中        //NSPredicate *predicate=[NSPredicate predicateWithFormat:@"name BEGINSWITH 't'|| name BEGINSWITH 'j'"];//是否以‘t’或者'j'开头        //NSPredicate *predicate=[NSPredicate predicateWithFormat:@"name ENDSWITH '-5'"];//是否以‘-5’结尾        NSPredicate *predicate=[NSPredicate predicateWithFormat:@"name like '*4'"];//是否以‘4’结尾        for (Person *p in array) {            BOOL ret=[predicate evaluateWithObject:p];            if (ret) {                NSLog(@"%@",p);            }                }                //对数组进行过滤        NSArray *filterArray=[array filteredArrayUsingPredicate:predicate];        NSLog(@"%@",filterArray);            }    return 0;}