执行SUBSTR（）命令
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Slia（讨论 | 贡献）2018年6月7日 (四) 09:46的版本 （创建页面，内容为“This is a standard DMIS 5.2 command able to extract a substring from a string.<br /> See Reading a Substring from a variable for the use of this capability.…”）
This is a standard DMIS 5.2 command able to extract a substring from a string.
See Reading a Substring from a variable for the use of this capability.
