失误1： 把i放到循环体内部，i++失效

54             while($lines_num_of_whole_table>=1){
 55                 my $i = 1;                    
 56                 print "i:".$i."\n";
 57                 @column_values_of_each_line = split(/,/, $table_column_name_and_value_lines[$i]);
 58                 @hash_clomnname_linevalue{@column_name} = @column_values_of_each_line;
 59                 @column_values_of_each_line = ();
 60                 $i++;
 61                 $lines_num_of_whole_table--;
 62             }

lines_num_of_whole_table:2
i:1
i:1
column7 =>  
column6 =>  y
column5 =>  123
column4 => abc