Question

我正在初始化一个像这样的对象：

Project *Project = [[Project alloc] init];

这是项目类的代码：

Project.h

#import <Foundation/Foundation.h>

@interface Project : NSObject
{

}

    @property (nonatomic,assign) int projectID; 
    @property (nonatomic,strong) NSString *name; 

@end

Project.m

#import "Project.h"

@implementation Project

    @synthesize projectID, name;

@end

我在尝试初始化对象时收到错误 No visible @interface for 'Project' declares the selector 'alloc' 。我该如何解决此问题？

Answer 1

您似乎试图将变量调用与类完全相同的名称：Project *Project。难怪编译器感到困惑！

将变量名称切换为小写Project *project。

Answer 2

绝不要将类名用作实例引用名称。

GoddamnClass *GoddamnClass = [GoddamnClass new]; // will have problems

GoddamnClass *anInstanceOfGoddamnClass = [GoddamnClass new]; // works like a magic

iOS错误：'Project'没有可见的@interface声明选择器'alloc'

2 个答案: