vb获得字符串中指定后几位字符，这里使用vb Right函数一行代码即可搞定，运行代码如示例图所示，在最左侧文字框中输入任意字符串，程序预设的是获取最右侧的2位字符，单击按钮后即可获取到最左侧字符串的最右边2位字符，并显示在Text文本框中，单击按钮后，其实是执行了以下代码：
Private Sub Command1_Click()
Text2.Text = Right(Text1, 2)
End Sub
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001253s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.088432s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001196s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001909s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001234s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003565s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001060s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003197s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014498s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001301s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 294550 [ RunTime:0.001335s ]
