OC7_单词个数

//
//  WordManger.h
//  OC7_单词个数
//
//  Created by zhangxueming on 15/6/17.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface WordManger : NSObject
{
    NSMutableDictionary *_wordList;
}

- (id)initWithFile:(NSString *)path;

- (void)parseWordFile:(NSString *)path;

- (NSInteger)firstWordCountInArray:(NSString *)word withArray:(NSMutableArray *)mulArray;

+ (void)userInterface;
@end

//
//  WordManger.m
//  OC7_单词个数
//
//  Created by zhangxueming on 15/6/17.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import "WordManger.h"

@implementation WordManger

- (id)initWithFile:(NSString *)path
{
    self = [super init];
    if (self) {
        _wordList = [NSMutableDictionary dictionary];
        [self parseWordFile:path];
    }
    return self;
}

- (void)parseWordFile:(NSString *)path
{
    //读取单词文件
    NSString *fileContent = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
    if (!fileContent) {
        return;
    }
    //分割字符串
    NSArray *words = [fileContent componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@",. \n"]];
    NSMutableArray *mulWords = [NSMutableArray array];
    for (NSString *item in words) {
        if (![item isEqualToString:@""]) {
            [mulWords addObject:[item lowercaseString]];
        }
    }
    //统计单词出现的次数, 并添加到字典中
    while ([mulWords count]) {
        NSString *key = [mulWords objectAtIndex:0];
        NSNumber *value = [NSNumber numberWithInteger:[self firstWordCountInArray:key withArray:mulWords]];
        [_wordList setObject:value forKey:key];
        [mulWords removeObject:key];
    }
}

- (NSInteger)firstWordCountInArray:(NSString *)word withArray:(NSMutableArray *)mulArray
{
    NSInteger cnt =0;
    for (NSString *item in mulArray) {
        if ([item isEqualToString:word]) {
            cnt++;
        }
    }
    return cnt;
}

+ (void)userInterface
{
    WordManger *manger = [[WordManger alloc] initWithFile:@"/Users/zhangxueming/Downloads/qfile-10.txt"];
    NSInteger cnt;
    scanf("%li",&cnt);
    NSLog(@"keys = %@", [manger->_wordList allKeysForObject:[NSNumber numberWithInteger:cnt]]);
}
@end

//
//  main.m
//  OC7_单词个数
//
//  Created by zhangxueming on 15/6/17.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "WordManger.h"

int main(int argc, const char * argv[]) {
    @autoreleasepool {
       
        [WordManger userInterface];
        
    }
    return 0;
}