MRMCWF解析器使用记录的属性(每个字段的长度)来确定一个Invoice记录从何处结束以及下一个Invoice记录从何处开始。
The MRM CWF parser USES the record's properties (the length of each field) to determine where one Invoice ends and the next one begins.
无法读取这个卷记录的长度字段。
对于每个非空的变长字段，记录头使用一或两个字节包含了列的长度。
For each non-NULL variable-length field, the record header contains the length of the column in one or two bytes.
函数的作用是：返回一定记录中指定字段的长度。
The mysql_field_len() function returns the maximum length of a field in a recordset.
该字段含有其所属记录的长度。
The field contains the length of the record to which it is attached.
逻辑记录长度格式档案中每个逻辑与实体记录长度，以字节（即字段）为单位。
The length, in bytes (i. e. , columns ), of a logical and physical record in a logical record length formatted file.
逻辑记录长度格式档案中每个逻辑与实体记录长度，以字节（即字段）为单位。
The length, in bytes (i. e. , columns ), of a logical and physical record in a logical record length formatted file.
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