NSArray利用Cocoa框架进行汉字排序

Posted 2020-10-01 mthoutai

NSArray利用Cocoa框架进行汉字排序

在NSString有一个函数localizedCompare:,它的功能是通过自身与给定字符串的比較，返回一个本地化的比較结果。也就是说这个函数是支持汉字比較的。

Student.h

@interface Student : NSObject

@property(nonatomic,copy)NSString *stuName;

@property(nonatomic,assign)CGFloat stuScore;

@property(nonatomic,copy)NSString *stuSex;

@property(nonatomic,assign)NSInteger stuAge;

-(id)initWithName:(NSString *)stuName

      andStuScore:(CGFloat) stuScore

        andStuSex:(NSString *) stuSex

        andStuAge:(NSInteger) stuAge;

+(id)StudentWithName:(NSString *)stuName

         andStuScore:(CGFloat) stuScore

           andStuSex:(NSString *) stuSex

           andStuAge:(NSInteger) stuAge;

@end

Student.m

@implementation Student

-(id)initWithName:(NSString *)stuName

      andStuScore:(CGFloat) stuScore

        andStuSex:(NSString *) stuSex

        andStuAge:(NSInteger) stuAge{

    self = [super init];

    if (self) {

        _stuName = stuName;

        _stuScore = stuScore;

        _stuSex = stuSex;

        _stuAge = stuAge;

    }

    return self;

}

+(id)StudentWithName:(NSString *)stuName

         andStuScore:(CGFloat) stuScore

           andStuSex:(NSString *) stuSex

           andStuAge:(NSInteger) stuAge{

    Student *stu = [[Student alloc] initWithName:stuName andStuScore:stuScore andStuSex:stuSex andStuAge:stuAge];

    return stu;

}

@end

main.m

Student *stu1 = [[Student alloc] initWithName:@"电脑" andStuScore:34.5 andStuSex:@"男" andStuAge:20];

    Student *stu2 = [[Student alloc] initWithName:@"鼠标" andStuScore:34.7 andStuSex:@"男" andStuAge:21];

    Student *stu3 = [[Student alloc] initWithName:@"键盘" andStuScore:45.6 andStuSex:@"nan" andStuAge:22];

    Student *stu4 = [[Student alloc] initWithName:@"显示器" andStuScore:34.6 andStuSex:@"男" andStuAge:23];

    NSArray *stuArray1 = [[NSArray alloc]initWithObjects:stu1,stu2,stu3,stu4,nil];

    

    NSArray *newArry = [stuArray1 sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {

        Student *stu1,*stu2;

        stu1 = (Student *)obj1;

        stu2 = (Student *)obj2;

        return [stu1.stuName localizedCompare:stu2.stuName];

    }];

    NSLog(@"未排序前:");

    for (Student *stu in stuArray1) {

        NSLog(@"name = %@,score = %g,sex = %@,age = %ld",stu.stuName,stu.stuScore,stu.stuSex,stu.stuAge);

    }

    NSLog(@"排序后");

    for (Student *stu in newArry) {

        NSLog(@"name = %@,score = %g,sex = %@,age = %ld",stu.stuName,stu.stuScore,stu.stuSex,stu.stuAge);

    }

    return 0;

这样做会有几方面的优点：1 支持多个汉字按字母序排序（若第一个字的第一个字母同样。则按第一个字的第二个字母比較，若第一个字的字母全然同样，按第二个字的首字母继续排序）。 2原本可能须要保存汉字拼音的地方。如今不须要了。

3 能够通过对nickNameSortde进一步定制。完毕更复杂的比較，比方先比較会员状态，在按姓名字母序完毕比較。4总体结构简单 使用的都是CocaTouch框架下的的方法。