旅行社区系统分析.htm

旅行社区系统分析,含英文翻译

style="mso-bookmark: _Toc43260634"></SPAN><SPAN lang=EN-US 
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<H2><A name=_Toc43177035></A><A name=_Toc43260635><SPAN 
style="mso-bookmark: _Toc43177035"><SPAN lang=EN-US>2.1 Visual Basic 
6.0</SPAN></SPAN></A><SPAN style="mso-bookmark: _Toc43260635"><SPAN 
style="mso-bookmark: _Toc43177035"><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">介绍</SPAN></SPAN></SPAN><SPAN 
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<P class=MsoNormal 
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align=left><B><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">Visual 
Basic</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">（简称</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">）是近年来得到迅速推广和应用的计算机高级语言，它适用于面向对象程序设计。人们可以在图形界面的</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">Windows</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">平台上开发应用程序。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt; mso-bidi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 23.65pt; LINE-HEIGHT: 150%; mso-char-indent-count: 2.0; mso-char-indent-size: 11.8pt"><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">是在原有</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">Basic</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">语言基础上的进一步发展，它包含了数百条语句、函数和关键词，其中很多和</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">Windows 
GUI</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">有直接的关系。</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">语言具有简单易学的特性，只要稍有语言基础就可以很快掌握并进而精通。可视化的用户界面设计功能，把程序设计人员从烦琐复杂的界面设计中解脱出来；可视化编程环境的</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial">“</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">所见即所得</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial">”</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">功能，使界面设计如积木游戏一般，从而使编程成为一种享受；强大的多媒体功能可轻而易举地开发出集声音、图画、影象和图片于一体的多媒体应用程序；新增的网络功能提供了编写</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">Internet</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">程序的能力。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan" 
align=left><B><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">的基本特点和优点：</SPAN><SPAN 
lang=EN-US 
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<P class=MsoNormal style="LINE-HEIGHT: 150%"><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN>1</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: Arial">、</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">可视化的设计平台</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 11.8pt; LINE-HEIGHT: 150%; mso-char-indent-count: 1.0; mso-char-indent-size: 11.8pt"><B><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">Visual Basic</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">提供的可视化设计平台，把</SPAN><B><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">Windows</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">界面设计的复杂性“封装”起来，开发人员不必为界面的设计而编写大量程序代码，只需按照设计的要求，用系统提示的工具在屏幕中画出各种对象即可。</SPAN><B><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">Visual Basi</SPAN></B><SPAN lang=EN-US 
style="FONT-SIZE: 12pt">c</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">自动产生界面设计代码，程序员只需要实现程序功能的那部分代码，从而大大的提高了程序设计的效率。</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 24pt; LINE-HEIGHT: 150%"><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">2</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: Arial">、</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">事件驱动的编程机制，</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">没有传统意义上的主程序，程序执行的基本方法是由</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial">“</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">事件</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial">”</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">来驱动子程序的运行。</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在图形用户界面的应用程序中，是由用户的动作即事件掌握着程序运行的流向，每个事件都能驱动一段程序的运行。程序员只需编写响应用户动作的代码，各个动作之间不一定有联系，使得程序既易于编写又易于维护。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 24pt; LINE-HEIGHT: 150%"><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">3</SPAN><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: Arial">、</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">提供可视化的编程工具（用</SPAN><B><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'">开发应用程序包括两部分工作：一是设计用户界面；二是编写程序代码。在程序设计时可以自由从存放多种控件的工具箱中直接拖放到指定的位置，而无须为此编写程序）在程序设计时可</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">供了易学易用的应用程序集成开发环境，在</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">VB 6</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">0</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">集成开发环境中，用户可设计界面、编写代码、调试程序，及把应用程序编译成可执行文件。</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 42pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 150%; tab-stops: list 42.0pt; mso-list: l13 level1 lfo8"><![if !supportLists]><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">4、</SPAN><![endif]><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">构化的程序设计语言，具有丰富的数据类型和结构化程序结构，而且简单易学。</SPAN><B><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">VB</SPAN></B><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">还有许多独到之处：</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 66pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; tab-stops: list 66.0pt; mso-list: l14 level2 lfo4"><![if !supportLists]><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">a)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN><![endif]><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">强大的数值和字符串处理功能。</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 66pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; tab-stops: list 66.0pt; mso-list: l14 level2 lfo4"><![if !supportLists]><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">b)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN><![endif]><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">丰富的图形指令。</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 66pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; tab-stops: list 66.0pt; mso-list: l14 level2 lfo4"><![if !supportLists]><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">c)<SPAN 
style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN><![endif]><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">提供静态和动态数组，有利于简化内存管理。</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 66pt; TEXT-INDENT: -21pt; LINE-HEIGHT: 150%; tab-stops: list 66.0pt; mso-list: l14 level2 lfo4"><![if !supportLists]><SPAN 
lang=EN-US style="FONT-SIZE: 12pt">d)<SPAN 
style="