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Private Function ReadFile(ByRef a As String) As String
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a = "bian"
End Function
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim a As String = "yuanlai"
ReadFile(a)
''想要的结果就是在这里使用a的值是"bian"
MsgBox(a)
End Sub
===================
以上就可以，不知道你“ByRef a As b”的b是什么东西
不知道你想实现什么功能。
如果你的意思是使用某种WINDOW API相对应的功能。需要查看MSDN中
.NETFRAMEWORK是否有相关的类库与函数。
VB中Declare 用于在模块级别中声明对动态链接库 (DLL) 中外部过程的引用。
可以引用windows api的函数。
但是如果你需要寻找一些你需要的类似WINDOWSAPI功能的函数。例如：FindWindow. 有一些函数功能类似。
例如 ：Process currentProcess = Process.GetCurrentProcess();
IntPtr hWndToProcess = currentProcess .MainWindowHandle;
获得程序进程的窗口。
但是要是获得桌面窗口这个就要用到api了。
教育经历：
1999/09--2003/06 北京联合大学 / 计算机应用专业 / 本科 / 英语四级
主修课程：数据结构、编译原理、软件工程、数据库基础、应用网络基础、C.C++应用程序设计、VB语言程序设计、汇编语言程序设计、可编程控制器（PLC）基础、集散控制系统（DCS）基础、大学物理、高等数学、线性代数、概率、微机接口技术等课程，
Education background:
From September, 1999 to June 2003, Beijing United University/computer application specialized/undergraduate course/English fourth level
Majors curriculums: database structure, compilation principles, software engineering, database foundation, application network foundation, C.C++ application programming, VB language programming, assembly language programming design, programmable controller(PLC) foundation, collection control system (DCS) foundation, college physics, engineering mathematics, linear algebra, probability, curriculum and so on microcomputer interface technology,
工作经验：
2003/06--2006/05：北京北控伟仕软件工程技术有限公司
咨询服务部 需求分析师
需求分析主管(下属5人)。
1.领导组内成员完成系统需求调研、概要设计、系统设计等需求文档 ；
2.制定需求分析和变更管理流程；
3.与项目开发、测试等人员配合完成整个项目开发，并保证项目运营过程中需求变更的顺 利实施 ；
Work experience:
June 2003 to May 2006: Beijing Beikong Weishi software engineering technology Co., Ltd
Consultation Service Department, demand analyst
The demand analysis manager (subordinate 5 people).
1. Take the leadership to guide the group member completing the following documents such as the system demand documents, preliminary design, system design;
2. Formulation demand analysis and change management flowchart;
3. With the cooperation of the personnel in project development and test, completes the entire project development, and ensure the smooth implementation of the demand changes during the project operation.
项目经验：
北京市劳动局社会保险信息管理系统
山西省国税项目
北京市社会保险电子服务平台
北京市社会保险统计分析系统
北京市劳动局宏观决策系统(数据仓库)
北京市社会保险网上申报系统
2006/05--2006/09：中企动力科技集团股份有限公司
企业信息化部 高级需求分析师
负责北京新网数码信息技术有限公司信息化的需求分析工作(下属3人)
1.领导组员进行需求调研
2.梳理需求流程制订需求计划
3.完成业务需求用例
2006/09--至今：中企动力科技集团股份有限公司
Project experience:
Beijing Labor Bureau, social security information management system
Shansi Provincial state tax project
Beijing social security electron service platform
Beijing social security statistical analysis system
Beijing labor bureau macroscopic decision system (data warehouse)
Beijing social security on-line declaration system
May 2006 to September 2006: Zhongqi Power Science and Technology Incorp.
Enterprise information high-level demand analyst
Be responsible for the information demand analysis work in Beijing New Net Digital Information technology Co.,Ltd (subordinate 3 people)
1. Leadership of the demand investigation and survey
2. Combs the demand flow, make demand plan
3. Completes the service demand example
From September 2006 until now: Zhongqi Power Science and Technology Incorp.
产品部 产品经理
1. 负责产品整个生命周期,领导协调各部门完成产品的规划、需求分析、开发、市场推广、业务运营以及产品升级换代等相关事宜，指导商务部门完成产品定价及合同编写等工作
2.运用SWOT等分析方法对市场,竞争对手进行分析,为公司制定战略目标提供数据支撑
3. 与产品战略部合作对项目进行立项可行性调研,并提供情报战略支持
4.在公司主要负责数字管理平台（企业内部信息门户）产品线
产品经验：
1.数字管理平台（产品经理）；
2.WAP建站平台（产品经理）；
3.数字商务平台（产品助理）；
Product Department, product manager
1. Be responsible for the entire life cycle of the products, take the leadership to coordinate various departments to complete the product planning, the demand analysis, the development, the market promotion, the service operation as well as the products upgrading and the correlative matters concerned, give instructions to the commercial department to fix the price and to compile the contract.
2. Using the SWOT analysis method to analyze the market, the competitor, to provide the data support for the formulation of the strategic target by the company.
3. carry on the project feasibility investigation and survey with the cooperation of Product Strategy Department, and provides the information strategy support.
4. Manages the product line on the digital management platform in the company (enterprise interior information gateway)
Product experience:
1. The digital management platform (product manager);
2.WAP construction platform (product manager);
3. Digital commercial platform (product assistant);
天哪，太长了，终于搞完了！GOD！
个别学校、公司名称你再看看！