zoukankan      html  css  js  c++  java
  • OC4_可变数组

    //
    //  main.m
    //  OC4_可变数组
    //
    //  Created by zhangxueming on 15/6/11.
    //  Copyright (c) 2015年 zhangxueming. All rights reserved.
    //
    
    #import <Foundation/Foundation.h>
    //NSMutableArray
    
    int main(int argc, const char * argv[]) {
        @autoreleasepool {
            //创建一个指定容量大小的可变数组对象
            NSMutableArray *mulArray = [[NSMutableArray alloc] initWithCapacity:20];
            NSMutableArray *mulArray2 = [NSMutableArray arrayWithCapacity:20];
            NSLog(@"mulArray = %@ mulArray2 = %@", mulArray, mulArray2);
            //添加数组元素
            [mulArray addObject:@"one"];
            NSLog(@"mulArray = %@", mulArray);
            //在指定位置添加数组元素
            [mulArray insertObject:@"two" atIndex:0];
            NSLog(@"mulArray = %@", mulArray);
            //将传入的数组添加到可变数组中
            [mulArray addObjectsFromArray:@[@"three",@"four",@"five",@"six"]];
            NSLog(@"mulArray = %@", mulArray);
            
            //删除数组中最后一个元素
            [mulArray removeLastObject];
            NSLog(@"mulArray = %@", mulArray);
            //删除指定位置的元素
            [mulArray removeObjectAtIndex:1];
            NSLog(@"mulArray = %@", mulArray);
            //替换指定位置的数组元素
            [mulArray replaceObjectAtIndex:2 withObject:@"helloworld"];
            NSLog(@"mulArray = %@", mulArray);
            //交换指定位置的数组元素
            [mulArray exchangeObjectAtIndex:0 withObjectAtIndex:2];
            NSLog(@"mulArray = %@", mulArray);
            //删除数组中所有的元素
            [mulArray removeAllObjects];
            NSLog(@"mulArray = %@", mulArray);
            
            NSMutableArray *mulArray3 = [NSMutableArray arrayWithObjects:@"one",@"two",@"two",@"three",@"two",@"three",@"four",@"five", nil];
            //删除指定范围内的指定的元素
            [mulArray3 removeObject:@"three" inRange:NSMakeRange(2, 4)];
            NSLog(@"mulArray3 = %@", mulArray3);
            
            //删除数组中所有出现的目标元素
            [mulArray3 removeObject:@"two"];
            NSLog(@"mulArray3 = %@", mulArray3);
            
            //删除所有在传入数组中出现的元素
            [mulArray3 removeObjectsInArray:@[@"one",@"four",@"six"]];
             NSLog(@"mulArray3 = %@", mulArray3);
            
            //删除指定范围的数组元素
            NSMutableArray *mulArray4 = [NSMutableArray arrayWithArray:@[@"one",@"two",@"three",@"four"]];
            [mulArray4 removeObjectsInRange:NSMakeRange(1, 2)];
            NSLog(@"mulArray4 = %@", mulArray4);
            
            //修改(重置)数组
            [mulArray4 setArray:@[@"hello",@"world",@"qian",@"feng"]];
            NSLog(@"mulArray4 = %@", mulArray4);
            
            //数组排序
            NSMutableArray *sortArray = [NSMutableArray arrayWithArray:@[@"one",@"two",@"three",@"four",@"five"]];
            [sortArray sortUsingSelector:@selector(compare:)];
            NSLog(@"sortArray = %@", sortArray);
            
            //用传入的数组替换指定范围内的数组元素
            [mulArray4 replaceObjectsInRange:NSMakeRange(0, 2) withObjectsFromArray:@[@"one",@"two",@"three"]];
            NSLog(@"mulArray4 = %@", mulArray4);
            
            //替换指定范围内的数组元素
    //- (void)replaceObjectsInRange:(NSRange)range withObjectsFromArray:(NSArray *)otherArray range:(NSRange)otherRange;
            NSMutableArray *mulArray5= [NSMutableArray arrayWithArray:@[@"one",@"two",@"three",@"four",@"five"]];
            NSArray *array = @[@"hello",@"world",@"qian",@"feng",@"jiaoxue"];
            [mulArray5 replaceObjectsInRange:NSMakeRange(1, 3) withObjectsFromArray:array range:NSMakeRange(0, 2)];
            NSLog(@"mulArray5 = %@", mulArray5);
            
    //        - (void)insertObjects:(NSArray *)objects atIndexes:(NSIndexSet *)indexes;
            NSMutableIndexSet *indexset = [NSMutableIndexSet indexSetWithIndex:1];
            [indexset addIndex:3];
            [mulArray5 insertObjects:@[@"ten",@"nine"] atIndexes:indexset];
            NSLog(@"mulArray5 = %@", mulArray5);
            
            //删除下表位置的元素
    //        - (void)removeObjectsAtIndexes:(NSIndexSet *)indexes;
            //用传入数组替换指定位置的数组元素
    //        - (void)replaceObjectsAtIndexes:(NSIndexSet *)indexes withObjects:(NSArray *)objects;
            [mulArray5 replaceObjectsAtIndexes:indexset withObjects:@[@"qian",@"feng"]];
            NSLog(@"mulArray5 = %@", mulArray5);
        }
        return 0;
    }
  • 相关阅读:
    内置方法(item系列、__str__方法、__del__方法)
    POJ3436
    CF551B
    HDU1588
    HDU3117
    CF834D
    CF832D
    CF832C
    POJ1930
    POJ3666
  • 原文地址:https://www.cnblogs.com/0515offer/p/4569779.html
Copyright © 2011-2022 走看看