今天写了一个自动更新程序的批处理脚本,但是有个变量一直赋值有问题。弄了一个下午终于找到原因及解决方法:

----转载要说明来自:博客园--邦邦酱好 哦

有问题的代码如下:

@echo off
echo.
set choice=
::::::::::::::::::::::::::::::::::::::::::::::
:::::::::::::::程序包上传FTP::::::::::::::::::
::::::::::::::::::::::::::::::::::::::::::::::
if "%choice%"=="" (
echo 请确认你已经把程序包放到本地指定目录下(y/n):
set /p yn=
echo %yn%
if /i "%yn%"=="n" (
set yn=""
goto end
)
echo 开始上传本地最新的程序包到服务器上...
echo 上传完毕
) :end
set choice=
echo 脚本终止!

连续运行4次,中间有2次说“ECHO处于关闭状态”,然后程序就判断失败了,这是为什么呢?

多次试验发现,如果语句set /p yn=   是在if语句外部,就不会发生这样的问题。

aaarticlea/png;base64,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" alt="" />

解决代码:

增加了setlocal enabledelayedexpansion,再改%yn%为!yn!。

@echo off&setlocal enabledelayedexpansion 

echo.
set choice=
::::::::::::::::::::::::::::::::::::::::::::::
:::::::::::::::程序包上传FTP::::::::::::::::::
::::::::::::::::::::::::::::::::::::::::::::::
if "%choice%"=="" (
echo 请确认你已经把程序包放到本地指定目录下(y/n):
set /p yn=
echo !yn!
if /i "!yn!"=="n" (
set yn=
goto end
)
echo 开始上传本地最新的程序包到服务器上...
::call Upload_Ftp.bat
echo 上传完毕
) :end
echo 脚本终止!

查了一个下午,发现原因如下:

批处理有一种机制是变量延迟,比如

@echo off
set a=
set a=&echo %a%
pause

打印的结果会是a=4,而不是a=5,因为在读取了一条完整的语句(set a=)之后,不立即对该行的变量赋值,而会在某个单条语句(set a=5&echo %a%)执行之前再进行赋值操作。也就是说“延迟”了对变量的赋值。

在cmd执行命令前会对脚本进行预处理,其中有一个过程是变量识别过程,在这个过程中,如果有两个%括起来的如%value%类似这样的变量,就会对其进行识别,并且查找这个变量对应的值,再而将值替换掉这个变量,这个替换值的过程,就叫做变量扩展,然后再执行命令。一般是对静态变量进行值的替换。

setlocal enabledelayedexpansion 就是延迟本地环境变量扩展,在cmd执行中,发生动态的一种情况是在 for语句,if语句中进行变量赋值,在动态变量赋值过程中,如果不主动开启延迟本地环境变量扩展,是不会对变量进行预处理的。

在上文第一段代码中,由于在语句(if /i "!yn!"=="n")之前没有对yn变量进行赋值,所以得到“ECHO处于关闭状态”的结果。

比如上方第三段代码,如果启动了变量延迟并把set a=5&echo%a%改为set a=5&echo!a!,所以批处理能够感知到动态变化,即不是先给该行变量赋值,而是在运行过程中给变量赋值,因此此时a的值就是5了。

所以我们就要在第一段代码中加入setlocal enabledelayedexpansion语句,开启延迟本地环境变量扩展,使得yn变量在if的动态赋值过程中能够被赋值。

同时注意开启延迟本地环境变量扩展后,变量需要用!!进行引用。

解决set /p yn= 接受键盘输入导致ECHO 处于关闭状态的问题的更多相关文章

  1. Java接受键盘输入

    import java.util.Scanner;//方法1 import java.io.BufferedReader;//方法2 import java.io.IOException;//方法3 ...

  2. python Tkinter接受键盘输入并保存文件

    最近想用python写个切换host的小工具,折腾了好几天,终于实现了第一步. 采用Tkinter编程,text控件接受输入,然后点击save按钮,保存内容到当前文件夹下,文件名为hostb,如下两张 ...

  3. 解决 minicom 不能接收键盘输入问题

    今天突然minicom 不能接受键盘输入了.早上的时候在其他设备上不能识别usb转串口的设备,重新启动电脑后,恢复正常了.下午又出现minicom 不接收键盘输入. 百度了一下解决了. 解决方法 由于 ...

  4. 解决JAVA单步调试键盘输入被JDB占用的问题

    解决JAVA单步调试键盘输入被JDB占用的问题 问题来源: 在完成本周任务时,编写的代码中含有Scanner类,编译及运行过程均正确,但使用JDB单步调试时,运行到输入行无法在JDB内部输入变量值. ...

  5. 解决键盘输入被JDB占用的问题

    解决键盘输入被JDB占用的问题 本周的任务"迭代和JDB"在使用JDB调试时需要键盘输入数据,但我在正确的位置输入数据后发现JDB提示如图所示的错误. 上网查找后得知该错误的产生是 ...

  6. 通过VNC连接远程服务器,然后登陆服务器上的虚拟机,出现键盘输入问题的解决方法

    前几天由于要在服务器上装一个虚拟机,然后就选择了vmware workstation,装好之后,进入虚拟机中的centOS系统,发现键盘上的Cpas Lock键不起作用,按下之后还是输入小写,而且按住 ...

  7. SendInput模拟键盘输入的问题

    SendInput模拟键盘输入的问题  http://www.cnblogs.com/yedaoq/archive/2010/12/30/1922305.html 最近接触到这个函数,因此了解了一下, ...

  8. WPF进阶技巧和实战09-事件(1-路由事件、鼠标键盘输入)

    理解路由事件 当有意义的事情发生时,有对象(WPF的元素)发送的用于通知代码的消息,就是事件的核心思想.WPF通过事件路由的概念增强了.NET事件模型.事件由允许源自某个元素的事件由另一个元素引发.例 ...

  9. java利用Scanner获取键盘输入

    首发地址:我的网易博客 在运行一个java程序的时候,可能我们需要在运行的时候传递一些参数进去...咋办呢... java提供了一个Scanner类,利用这个类,我们可以很方便的获取键盘输入的参数.. ...

随机推荐

  1. BestR #31

    hdu 5178 求|a[i] - a[j]| <= k (i < j) <i,j>的对数,一开始认为数据不大就直接ans++了,后来结果出来才知道,啊啊啊,too young ...

  2. 关于时间,日期,星期,月份的算法(Java中Calendar的用法)(一)

    package cn.outofmemory.codes.Date; import java.util.Calendar; import java.util.Date; public class Ca ...

  3. Ubuntu 安装和配置minicom

    Ubuntu 安装和配置minicom 1 . 安装 Minicom 用新立得软件管理器下载minicom 2.配置Minicom shell下输入 minicom -s 打开配置界面 进入Seria ...

  4. 混淆器:java程序保护如何知识产权,特别提供一个java 开发的java 源代码级的混淆器

    java程序保护如何知识产权,特别提供一个java 开发的java 源代码级的混淆器 下载地址:http://yunpan.cn/QXhEcGNYLgwTD 运行方式:java -jar Encryp ...

  5. 591 - Box of Bricks

     Box of Bricks  Little Bob likes playing with his box of bricks. He puts the bricks one upon another ...

  6. [C#基础] 继承

    虚方法和覆写方法 虚方法可以使基类的引用访问"升至"派生类中 可以使用基类引用调用派生类的方法,只需满足下面的条件 派生类的方法和基类的方法有相同的签名和返回类型 基类的方法使用v ...

  7. Dom4j和Xpath(转)

    1.DOM4J简介 DOM4J是 dom4j.org 出品的一个开源 XML 解析包.DOM4J应用于 Java 平台,采用了 Java 集合框架并完全支持 DOM,SAX 和JAXP. DOM4J使 ...

  8. Android中网络流量控制(防火墙)——Iptables

    Iptables简单介绍 iptables是与最新的 2.6.x 版本号 Linux 内核集成的 IP 信息包过滤系统. 假设 Linux 系统连接到因特网或 LAN.server或连接 LAN 和因 ...

  9. Java排序算法(四):Shell排序

    [基本的想法] 将原本有大量记录数的记录进行分组.切割成若干个子序列,此时每一个子序列待排序的记录个数就比較少了,然后在这些子序列内分别进行直接插入排序,当整个序列都基本有序时.再对全体记录进行一次直 ...

  10. ZipHelper 压缩和解压帮助类

    ZipHelper 压缩和解压帮助类 关于本文档的说明 本文档基于ICSharpCode.SharpZipLib.dll的封装,常用的解压和压缩方法都已经涵盖在内,都是经过项目实战积累下来的 欢迎传播 ...