DEFINE PAD MenuTitle1 OF MenuBarName PROMPT cMenuTitleText
[AT nRow, nColumn] [BEFORE MenuName2 | AFTER MenuName3]
[NEGOTIATE cContainerPosition [, cObjectPosition]]
[FONT cFontName [, nFontSize [, nFontCharSet]]] [STYLE cFontStyle]
[KEY KeyLabel [, cKeyText]] [MARK cMarkCharacter]
[SKIP [FOR lExpression]] [MESSAGE cMessageText]
[COLOR SCHEME nSchemeNumber | COLOR ColorPairList]
这些东西看不懂,能不能解释一下,或者给个例子