按照拼音对数组中的中文字符串排序的算法

按照拼音对数组中的中文字符串排序的算法，不是很难，这里直接放上代码，Demo去最下面找：
注：里面用到一个叫George的牛人写的中文转拼音首字母的函数pinyinFirstLetter，因为内容实在是太多了就不贴上来了。
里面还用到一个叫ChineseString的类，里面只有两个NSString对象（string和pinYin）用于存放原字符串和字符串中每个字的拼音首字母

复制代码         //结果看输出         //Step1:初始化         NSMutableArray *stringsToSort=[NSArray arrayWithObjects:                                 @"电脑",                                 @"显示器",                                 @"你好",                                 @"推特",                                 @"乔布斯",                                 @"再见",                                 @"暑假作业",                                 @"键盘",                                 @"鼠标",                                 @"谷歌",                                 @"苹果",                                 nil];                  //Step1输出         NSLog(@"尚未排序的NSString数组:");         for(int i=0;i<[stringsToSort count];i++){             NSLog(@"%@",[stringsToSort objectAtIndex:i]);         }                           //Step2:获取字符串中文字的拼音首字母并与字符串共同存放         NSMutableArray *chineseStringsArray=[NSMutableArray array];         for(int i=0;i<[stringsToSort count];i++){             ChineseString *chineseString=[[ChineseString alloc]init];                          chineseString.string=[NSString stringWithString:[stringsToSort objectAtIndex:i]];                          if(chineseString.string==nil){                 chineseString.string=@"";             }                          if(![chineseString.string isEqualToString:@""]){                 NSString *pinYinResult=[NSString string];                 for(int j=0;j                     NSString *singlePinyinLetter=[[NSString stringWithFormat:@"%c",pinyinFirstLetter([chineseString.string characterAtIndex:j])]uppercaseString];                                          pinYinResult=[pinYinResult stringByAppendingString:singlePinyinLetter];                 }                 chineseString.pinYin=pinYinResult;             }else{                 chineseString.pinYin=@"";             }             [chineseStringsArray addObject:chineseString];         }                  //Step2输出         NSLog(@"\n\n\n转换为拼音首字母后的NSString数组");         for(int i=0;i<[chineseStringsArray count];i++){             ChineseString *chineseString=[chineseStringsArray objectAtIndex:i];             NSLog(@"原String:%@----拼音首字母String:%@",chineseString.string,chineseString.pinYin);         }                                    //Step3:按照拼音首字母对这些Strings进行排序         NSArray *sortDescriptors = [NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:@"pinYin" ascending:YES]];         [chineseStringsArray sortUsingDescriptors:sortDescriptors];                  //Step3输出         NSLog(@"\n\n\n按照拼音首字母后的NSString数组");         for(int i=0;i<[chineseStringsArray count];i++){             ChineseString *chineseString=[chineseStringsArray objectAtIndex:i];             NSLog(@"原String:%@----拼音首字母String:%@",chineseString.string,chineseString.pinYin);         }                  // Step4:如果有需要，再把排序好的内容从ChineseString类中提取出来         NSMutableArray *result=[NSMutableArray array];         for(int i=0;i<[chineseStringsArray count];i++){             [result addObject:((ChineseString*)[chineseStringsArray objectAtIndex:i]).string];         }                  //Step4输出         NSLog(@"\n\n\n最终结果:");         for(int i=0;i<[result count];i++){             NSLog(@"%@",[result objectAtIndex:i]);         }                  //程序结束                  NSLog(@"\n\n\nDemo By Hxy060799");

输出结果这里也贴上了：



Demo：  ChineseSort.zip (78 K) 下载次数:1268