Thanks all. I think the problem is happened on the readline. After I add the line before the split

 print "Line just read is $_\n";

the output is

Line just read is 1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;

Line just read is 21;22;23;24;25;26;27;28;29;30;31;32;33;34;35;36

I also checked the lenght of each line is limited 51. Anyone would have clue?

In reply to Re^4: split function by tcheungcm
in thread split function by tcheungcm

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