函数组：SCMS_CONV
这个函数组包含了一些字符内码转换的函数：包括二进制、十六进制、字符串之间的互相转换。

SCMS_BINARY_TO_FTEXT
SCMS_BINARY_TO_STRING
SCMS_BINARY_TO_TEXT
SCMS_BINARY_TO_XSTRING
SCMS_FTEXT_TO_BINARY
SCMS_FTEXT_TO_STRING
SCMS_FTEXT_TO_TEXT
SCMS_FTEXT_TO_XSTRING
SCMS_STRING_TO_FTEXT
SCMS_STRING_TO_XSTRING
SCMS_TEXT_TO_BINARY
SCMS_TEXT_TO_FTEXT
SCMS_TEXT_TO_XSTRING
SCMS_XSTRING_TO_BINARY