[CDZPicker showSinglePickerInView:self.view withBuilder:nil strings:@[@"objective-c",@"java",@"python",@"php"] confirm:^(NSArray<NSString *> * _Nonnull strings, NSArray<NSNumber *> * _Nonnull indexs) {
        self.label.text = strings.firstObject;
    }cancel:^{
        //your code
    }];

 [CDZPicker showMultiPickerInView:self.view withBuilder:nil stringArrays:@[@[@"MacOS",@"Windows",@"Linux",@"Ubuntu"],@[@"Xcode",@"VSCode",@"Sublime",@"Atom"]] confirm:^(NSArray<NSString *> * _Nonnull strings, NSArray<NSNumber *> * _Nonnull indexs) {
        self.label.text = [strings componentsJoinedByString:@"+"];
    } cancel:^{
        // your code
    }];

CDZPickerComponentObject *haizhu = [[CDZPickerComponentObject alloc]initWithText:@"海珠区"];
CDZPickerComponentObject *yuexiu = [[CDZPickerComponentObject alloc]initWithText:@"越秀区"];
    
CDZPickerComponentObject *guangzhou = [[CDZPickerComponentObject alloc]initWithText:@"广州市"];
guangzhou.subArray = [NSMutableArray arrayWithObjects:haizhu,yuexiu, nil];
    
CDZPickerComponentObject *xiangqiao = [[CDZPickerComponentObject alloc]initWithText:@"湘桥区"];
CDZPickerComponentObject *chaozhou = [[CDZPickerComponentObject alloc]initWithText:@"潮州市"];
chaozhou.subArray = [NSMutableArray arrayWithObjects:xiangqiao, nil];
    
CDZPickerComponentObject *guangdong = [[CDZPickerComponentObject alloc]initWithText:@"广东省"];
guangdong.subArray = [NSMutableArray arrayWithObjects:guangzhou,chaozhou, nil];
    
CDZPickerComponentObject *pixian = [[CDZPickerComponentObject alloc]initWithText:@"郫县"];

CDZPickerComponentObject *chengdu = [[CDZPickerComponentObject alloc]initWithText:@"成都市"];
chengdu.subArray = [NSMutableArray arrayWithObjects:pixian, nil];
    
CDZPickerComponentObject *leshan = [[CDZPickerComponentObject alloc]initWithText:@"乐山市"];
    
CDZPickerComponentObject *sichuan = [[CDZPickerComponentObject alloc]initWithText:@"四川省"];
sichuan.subArray = [NSMutableArray arrayWithObjects:chengdu,leshan, nil];

[CDZPicker showLinkagePickerInView:self.view withBuilder:nil components:@[guangdong,sichuan] confirm:^(NSArray<NSString *> * _Nonnull strings, NSArray<NSNumber *> * _Nonnull indexs) {
        self.label.text = [strings componentsJoinedByString:@","];
    }cancel:^{
        //your code
    }];