In IMS/VS message format service, a character used to pad input message fields or output device fields when the length of the received data is less than the length defined for the field or when no data is received for the field.
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- 在IBM的IMS/VS系統的報文格式服務(wù)程序中，當輸入報文字段或輸出設備字段所接收的數據長(cháng)度小于規定的長(cháng)度或未接收到數據時(shí)，用來(lái)填充該字段的字符。
