<script>                         function takeout(th) {                            var text2 = $('textarea').val();                            var allcon2 = text2.split("\n");                             $(th).val('');                            for (var i = 0; i < allcon2.length; i++) {                                 a = allcon2[i].split('\t');                                var ha = a.join("\t");                                 $(th).val($(th).val() + $.trim(ha) + '\n');                             }                            return true;}                    </script>                                          代碼是：讓一個tab分割的矩陣去掉兩側的空格### 問題描述