oc-Foundation框架-NSString－常用方法-路径相关

NSMutableArray *arry=[NSMutableArray array];//可变数组
    [arry addObject:@"Users"];
    [arry addObject:@"liysng"];
    [arry addObject:@"desktop"];
    NSString *path=[NSString pathWithComponents:arry];
    NSLog(@"%@",path);//将数组里面的内容拼接城路径
    NSArray *arry1=[path pathComponents];//将路径分解
    for(NSString *a in arry1){
        NSLog(@"%@",a);
    }

 NSString *path=@"/users/liyang/desktop/liyang.txt";
   NSLog(@"%i",[path isAbsolutePath]);//判断是否为结对路径，这个判断很笨拙，它就是检测是否以“／”开头

NSString *path=@"/users/liyang/desktop/liyang.txt";
   NSLog(@"%@",[path lastPathComponent]);//路径分割的最后一个元素这里返回的是liyang.txt

NSString *path=@"/users/liyang/desktop/liyang.txt";
   NSLog(@"%@",[path stringByDeletingLastPathComponent]);//
删除最后一个路径元素，随后是没有"/"的

   NSString *path=@"/users/liyang/desktop/liyang.txt";
   NSLog(@"%@",[path stringByAppendingPathComponent:@"oo"]);//和上面的相反，这个是拼接一个路径