vb 判断经历多少个工作日，在两个日期选择器中选择日期值，然后判断选定的两个日期之间相差了多少天，判断两个定点之间的天数，比较基础，但也很有必要学习，时间和日期计算在很多软件中都要用到，这个例子相对简单些。大致代码：
If IsDate(Text1) = True And IsDate(Text2) = True Then
Dim i As Integer
i = gongzuori(CDate(Text1), CDate(Text2))
Label3.Caption = "经历" & i & "个工作日"
Else
MsgBox "请输入日期型"
End If
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001343s ]
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:0.094521s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001233s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001951s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001280s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003601s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001071s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003228s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025414s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001907s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 294528 [ RunTime:0.001506s ]
