ios搜索主要代码

{

    NSString *key = queryField.text;

    //获取查询语句并对特殊符号进行URL编码

    NSString *search = [key stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    //格式化URL 

    NSString *urlString = [NSString stringWithFormat:@"http://www.easyicon.cn/iconsearch/%@/", search];

    NSURL *url = [NSURL URLWithString:urlString];

    [[UIApplication sharedApplication] openURL:url];

}