MAC COCOA call command 调用终端控制台程序

STEP 1 

先写一个C++ DOS程序

STEP2

使用NSTask来执行，然后用NSPipe和NSData来接受执行的结果字符串。

先写一个函数：

/*******************************
 Function : NSTask Class + Terminal(=Windows Command) of MAC OS X
 Description :
 $ ./test_was_call_command_app -sum 2 8 5
 *******************************/
NSString* test_sum(int a,int b,int c)
{
    NSString *path  =  @"/Users/test_was_call_command_app/debug/test_was_call_command_app";
    NSTask *task            = [[NSTask alloc] init];
    task.launchPath = path;
    NSMutableArray *arguments = [[NSMutableArray alloc] init];
    [arguments addObject:@"-sum"];
    NSString *var;
    var =[ NSString stringWithFormat:@"%i",a ];
    [arguments addObject:var];
    var =[ NSString stringWithFormat:@"%i",b];
    [arguments addObject:var];
    var =[ NSString stringWithFormat:@"%i",c ];
    [arguments addObject:var];
    task.arguments  = arguments;
//启动前，增加输出设置＋＋＋
    NSPipe *pipe;
    pipe = [NSPipe pipe];
    [task setStandardOutput: pipe];
    NSFileHandle *file;
    file = [pipe fileHandleForReading];
// ---
    
    [task launch];
    [task waitUntilExit];
    //执行结束后，得到执行的结果字符串++++++
    NSData *data;
    data = [file readDataToEndOfFile];

    NSString *result_str;
    result_str = [[NSString alloc] initWithData: data
                                   encoding: NSUTF8StringEncoding];
    //---------------------------------
    return result_str;
}

int main(int argc,const char * argv[])

{

    @autoreleasepool

    {

       NSString *rs=test_sum(7,2,20);

       int rs_int= [rs intValue];

       NSString *show =[NSStringstringWithFormat:@"sum : %i",rs_int ];

       CFShow(show);

  ｝

STEP3

测试，成功！

补充：

   // [以下两行可以在MAC APP中点击按钮打开一个网页] +++

    NSURL *web_url = [NSURLURLWithString:@"http://www.hao123.com/"];

    [[NSWorkspacesharedWorkspace] openURL:web_url];//TEST OK!

    // [以下两行可以在MAC APP中点击按钮打开一个网页] ---

   // Launch Apple Mail [test OK!]

   [[NSWorkspacesharedWorkspace]openURL:[NSURLURLWithString:@"mailto://info@iphonedevelopertips.com"]];

  或者：

- (IBAction)OnClick_BT_OpenURLBySearch:(id)sender

{

    //打开网页的第二种方法，传递一个var [begin] +++

   NSString* searchQuery = @"apple";

    // Be careful to always URL encode things like spaces and other symbols that aren‘t URL friendly

    searchQuery =  [searchQuery stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    // Now create the URL string ...

   NSString* urlString = [NSStringstringWithFormat:@"http://www.baidu.com/s?wd=%@", searchQuery];

    // An the final magic ... openURL!

    [[NSWorkspacesharedWorkspace] openURL:[NSURLURLWithString:urlString]];

    //打开网页的第二种方法，传递一个var [begin] ---

}