Question

我正在寻找一种快速方法从CSV文件的第一列中删除前导零，以便其他程序很好地使用它。如果可能的话，将它从逗号分隔转换为制表符分隔符也很棒，但这可能是一个单独的问题。

这里是标题名称（只需要从学生ID中删除前导（2）零）：

"Student ID","School Name","Contact Relation","Contact First Name","Contact Last Name","Salutation"," Home Phone Number","Address Line 1","Address Line 2","City","State","Zip","Zip + 4","Work Phone","Cell Phone","Pager","Residential Status","Custodial Status"

以下是一些示例数据，以了解它的格式：

"004000031","Local High School","Mother","FirstName","LastName","","555-5557773","555 Old Midlothian Tpke","Lot77","Richmond","VA","23222","","","","","","Y"

Answer 1

这一行应该这样做：

String[] tokens = String.join("\t", csv.replaceFirst("^\"0*", "\"").split(","));

Answer 2

修改了生成CSV文件的XML代码。只需添加/修改2行

 <field id="stdIDLocal" header-source="field" header-value="Student ID"     find="00" replaceFirst="" />

要将输出从CSV转换为制表符分隔文件，请在标记中使用以下XML语句：

<export table-id="tblStudent" header-row="true" value-delimiter="&#09;" >

Answer 3

这个perl应该为你做。

第一个表达式删除每行的前两个零。第二个将,更改为标签。

perl -pne 's/^00//;s/,/\t/g' your_file.txt

从csv文件的1列中删除前导零

3 个答案: