objective-c - 简单的Objective-C脚本打开一个URL

Question

我试图用对象c打开一个URL，我的代码如下

#include <stdio.h>
int main()
{
[[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:@"http://www.ithinksw.com/"]];
return 0;
}

但是当我尝试编译它时，出现这些错误

hello.c: In function 'main':
hello.c:4: error: expected expression before '[' token
hello.c:4: error: 'NSWorkspace' undeclared (first use in this function)
hello.c:4: error: (Each undeclared identifier is reported only once
hello.c:4: error: for each function it appears in.)
hello.c:4: error: expected ']' before 'openURL'
hello.c:4: error: stray '@' in program

即时通讯这是个新手，所以任何帮助都会很棒的:)

Answer 1

似乎您定位到iPhone，因此必须使用[[UIApplication sharedApplication] openURL]而不是NSWorkspace。

#import <Foundation/Foundation.h>

#if TARGET_OS_IPHONE
#import <UIKit/UIKit.h>
#endif

// ...

#if TARGET_OS_IPHONE
    [[UIApplication sharedApplication] openURL:url];
#elif TARGET_OS_MAC
    [[NSWorkspace sharedWorkspace] openURL:url];
#endif

并且不要忘记添加Foundation框架以包含和链接部分。