StringByAppendingPathComponent和stringByAppendingString的区别

cyy:自我理解，不保证正确，但亲自试验确实可行：若用 stringByAppendingString  则需要手动在名称前加 “/”符号，而stringByAppendingPathComponent则不需要，它会自动添加

stringByAppendingPathComponent和stringByAppendingString的区别：

 NSString *imagePath = [skinPath stringByAppendingString:[NSString stringWithFormat:@"/%@",imageName]];//stringByAppendingString是在skinPath加后缀的意思
    NSString *imagePath = [skinPath stringByAppendingPathComponent:imageName];//stringByAppendingPathComponent是在skinPath后面加上“／”号连接imageName让它成为完整的路径
    NSLog(@"imagePath:%@",imagePath);

打印：

2013-11-27 14:44:30.052 Willing[2757:70b] imagePath:/Users/will/Library/Application Support/iPhone Simulator/7.0.3/Applications/DA5B603D-4D07-4425-B7CC-5D49232189BE/Willing.app/tabbar_home.png