A unit of data appended to every VFC (variable-with-fixed-control) or variable- length record, regardless of file organization. The field contains the length of the record to which it is attached.
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- 附加在每个具有固定控制可变长度(VFC)或可变长度的记录上的一个数据单元,它与文档的结构无关。该字段含有其所属记录的长度。