In fact, sscanf belongs to the String::Scanf, when I install this
module,program works ok.
thank you all the same!
2008/7/14 Amit Saxena <[EMAIL PROTECTED]>:
> You need not to call any specific module for sscanf.
>
> Could you tell me the line number where perl complains ?
>
> Also please post your complete code !
>
> Regards,
> Amit Saxena
>
> 2008/7/14 vikingy <[EMAIL PROTECTED]>:
>
> thank you for your help!
>> when I do it as you suggested,I get the error message "undefined
>> subroutine @main:: sscanf called at ..."
>> would you tell me which module does the function"sscanf" belong to ?
>> "String" ???
>>
>>
>> 2008-07-14
>> ------------------------------
>> The Key Lab of Complex Systems and Intelligence Science,
>> Institute of Automation,
>> Chinese Academy of Sciences.
>> ------------------------------
>> *发件人：* Amit Saxena
>> *发送时间：* 2008-07-14 22:57:03
>> *收件人：* vikingy
>> *抄送：* beginners
>> *主题：* Re: how to read the formatted data from the file?
>> #! /usr/bin/perl
>>
>> use warnings;
>> use strict;
>>
>> open (PTR1, "<filename.txt") or die "Unable to open file filename.txt :
>> $!\n\n";
>>
>> while (chomp ($str = <PTR1>))
>> {
>> sscanf($str, "%5d %11.2f", $data1, $data2);
>>
>> # do whatever processing.....
>> }
>>
>> close (PTR1);
>>
>> Regards,
>> Amit Saxena
>>
>> On Mon, Jul 14, 2008 at 8:23 PM, vikingy <[EMAIL PROTECTED]> wrote:
>>
>>> Hi all,
>>>
>>> There is a file created likes this:
>>>
>>> open File ">file.txt" or die $!;
>>> foreach .. <..> {
>>> printf File "%5d %11.2f\n", $data1,data2;
>>> }
>>> close File;
>>>
>>> and my question is, how to read these data follow the same format as "%5d
>>> %11.2f' from this file again?
>>> thanks in advance!
>>>
>>> 2008-07-14
>>>
>>>
>>>
>>> The Key Lab of Complex Systems and Intelligence Science,
>>> Institute of Automation,
>>> Chinese Academy of Sciences.
>>>
>>
>>
>
