close与close all命令的区别!

close与close all命令的区别! vfp中,close all命令和close tables all命令有何区别? 用来关闭数据库的命令有 A use B close C close databae D close all close与closed的区别 close与 closer的区别 shut与close的区别 be close to 与close to的区别? closer与more close的区别?more close对不对? close与closely区别? “close”与“close to”有什么区别? turn off与close down的区别 close to与next to的区别