从 csv 文件的 1 列中删除前导零

Question

我正在寻找一种从 CSV 文件的第一列中删除前导零的快速方法，以便其他程序可以很好地使用它。如果可能的话，最好也将其从逗号分隔转换为制表符分隔，但这可能必须是一个单独的问题。

这里是 header 个名字（只需要从学生 ID 中去掉前导 (2) 个零）：

"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"

下面是一些示例数据，以了解其格式：

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

Answer 1

这个 perl 应该可以为您完成。

第一个表达式删除每行的前两个零。第二个将 , 更改为制表符。

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

Answer 2

这一行应该这样做：

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

Answer 3

修改了生成 CSV 文件的 XML 代码。只需要add/modify 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，请在您的标记中使用以下 XML 语句：

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

从 csv 文件的 1 列中删除前导零

Removing leading zeros from 1 column of a csv file

java

csv

formatting

string-formatting