升级程序开发——读Web.config、执行Sql脚本

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当程序数据库发生修改后，需要执行sql脚本，以修正数据库。数据库连接字符串在web.config文件中，所以此部分设计两部分的内容：读web.config；执行sql脚本文件
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读web.config是以读xml文件的方式，找到connectingstring的value，对字符串进行切割、取子字符串的方式获取访问数据库的关键信息：数据库服务器名、数据库名、访问用户名、访问密码
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7 r3 e6 Y2 V, h; K4 N- }对于脚本文件的执行，通过“GO”来获得脚本文件中包含的需要一次性执行的sql代码，然后再执行所有的代码块就好了

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这里是参考的这篇文章的做法，但是，这篇文章是用C#执行sql文件，再将连接字符串写到web.config中，和我的应用有些差别
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下面的这篇文章，介绍了Split方法的各种重载的应用，并有例子，字符串切割的话可以看看
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程序代码
1) public string[] Split(params char[] separator)
" E! z) \/ o" {8 x3 w% }* f2) public string[] Split(char[] separator, int count)
4 Z0 [$ _  Y6 y) `- v% C3) public string[] Split(char[] separator, StringSplitOptions options)
5 G+ h' Q5 j; z; T- m" i- a" ~4) public string[] Split(string[] separator, StringSplitOptions options)
5) public string[] Split(char[] separator, int count, StringSplitOptions options)
9 F7 ~( j# D3 u$ r; C+ S/ U6) public string[] Split(string[] separator, int count, StringSplitOptions options)
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0 G" D$ z3 i4 k, n( w下边我们通过一些实例来说明下怎么使用(以下string words = "1,2.3,,4";)：
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# L* J5 ^9 h, ~2 U  R0 v9 s1. public string[] Split(params char[] separator)

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string[] split = words.Split(new Char[] { ',' });//返回:{"1","2.3","","4"}
string[] split = words.Split(new Char[] { ',', '.' });//返回:{"1","2","3","","4"}
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2. public string[] Split(char[] separator, int count)

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9 g; u& J' P2 h' k/ ?" d3 U% |string[] split = words.Split(new Char[] { ',', '.' }, 2);//返回:{"1","2.3,,4"}
6 h* w" Z+ Y* W9 {string[] split = words.Split(new Char[] { ',', '.' }, 6);//返回:{"1","2","3","","4"}
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3. public string[] Split(char[] separator, StringSplitOptions options)
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程序代码
9 K5 {: H4 J" `# X* dstring[] split = words.Split(new Char[] { ',', '.' }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素
string[] split = words.Split(new Char[] { ',', '.' }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素
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4. public string[] Split(string[] separator, StringSplitOptions options)
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9 E5 X" P2 {8 o$ H! ostring[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素
string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素
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0 Y' p/ p7 ~% B) E. O5. public string[] Split(char[] separator, int count, StringSplitOptions options)

  d0 m  N+ k8 q; ]. ]" a1 }0 q 程序代码
$ E2 d& B! w; q" m) ?string[] split = words.Split(new Char[] { ',', '.' }, 2, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2.3,,4"} 不保留空元素
# X$ k0 T; |" f* |3 ?string[] split = words.Split(new Char[] { ',', '.' }, 6, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素
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6. public string[] Split(string[] separator, int count, StringSplitOptions options)
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string[] split = words.Split(new string[] { ",", "." }, 2, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2.3,,4"} 不保留空元素
string[] split = words.Split(new string[] { ",", "." }, 6, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素