两种方式都可以加参数

1.NSURL 

 [ NSURL URLWithString : [NSString stringWithFormat:@"http://192.168.1.100:8080/down?method=%@",abcdef] ]; 



2.ASIFormDataRequest 

ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url]; 

[request setPostValue:@"Ben" forKey:@"first_name"]; 

[request setPostValue:@"Copsey" forKey:@"last_name"];