现在以批量打印Excel文件（.xlsx格式）为例，采用VBA编程，进行任务的实现。...Set fd = Application.FileDialog(msoFileDialogFilePicker) 'Declare a variable to contain the path...Dim vrtSelectedItem As Variant 'Use a With...End With block to reference the FileDialog object....the object variable to Nothing..../vba/api/office.filedialog）
语法：expression.ProtectContents expression: A variable that represents a Worksheet object....AllowDeletingColumns, AllowDeletingRows, AllowSorting, AllowFiltering, AllowUsingPivotTables) expression: A variable...that represents a Worksheet object....语法：expression.Unprotect (Password) expression: A variable that represents a Worksheet object....Option Explicit Sub EditData() '修改数据 Dim sht As Worksheet, flag_protect As Boolean Set
文章背景：在编写VBA代码时，有时需要一个用户输入的对话框，以实现跟用户的交互。...that represents an Application object....You must use the Set statement to assign the result to a Range object, as shown in the following example...Set myRange = Application.InputBox(prompt := "Sample", type := 8) If you do not use the Set statement..., the variable is set to the value in the range, rather than the Range object itself.
4 使用With语句读取对象属性 When working with objects, use the With statement to reduce the number of times object...Option Explicit requires all variables to be declared and will give compile errors if an undeclared variable...This helps catch incorrectly typed variable names and improves performance with all variable types being...This can be set by typing: Option Explicit at the top of each module in your project or by checking the..."Require Variable Declaration" option under Tools -> Options in the VBA editor.
文章背景：测试仪器的数据有些会以Excel文件的形式保存，工作量大时测试员会选中多份文件进行批量打印，同时可能需要删除一些无需打印的测试数据（比如空白样，错误数据等）。...现在以批量打印Excel文件（.xlsx格式）为例，采用VBA编程，进行任务的实现。 无需打印的Excel文件名依次填在E列，打印时会跳过这些文件。...the object variable to Nothing....Set fd = Nothing MsgBox "打印结束！"...相关资料： [1] VBA: 多份Excel文件的批量顺序打印 [2] Excel: 提取路径中的文件名 [3] VBA：获取指定数值在指定一维数组中的位置
2.1 标题 标头长度为 10-12 字节，确认消息包含两个额外的错误代码字节。除此之外，标头格式在所有 PDU 中都是一致的。...小端序（注意：这是WinCC，Step7和其他西门子程序的行为，它可能是随机生成的，PLC只是将其复制到回复中） 参数长度：[2b] 参数字段的长度，大端序 数据长度：[2b] 数据字段的长度，大端序 （错误类...0x05 - Write Variable 0x1A - Request download 0x1B - Download block 0x1C - Download ended 0x1D - Start...0x05 - Write Variable 0x1A - Request download 0x1B - Download block 0x1C - Download ended 0x1D - Start...0x05 - Write Variable 0x1A - Request download 0x1B - Download block 0x1C - Download ended 0x1D - Start
Either object.getMethod() or object.setMethod() can be abbreviated as Directives #set – Establishes...Examples: Variable reference: #set( monkey = bill ) String literal: #set( $monkey.Friend = ‘monica’ )...( Number literal: #set( $monkey.Number = 123 ) Range operator: #set( $monkey.Numbers = [1..3] ) Object...list: #set( monkey.Say = [“Not”, my, “fault”] ) Object map: #set( $monkey.Map = {“banana” : “good”,...Examples of the #foreach(), omitting the statement block : Reference: #foreach ( item in items ) Array
中的新规则 为了ARC能顺利工作，特增加如下规则，这些规则可能是为了更健壮的内存管理，也有可能为了更好的使用体验，也有可能是简化代码的编写，不论如何，请不要违反下面的规则，如果违反，将会得到一个编译期错误...the compiler to create the temporary variable....Two better options are to either use __weak (if you don’t need to support iOS 4 or OS X v10.6), or set...the __block value to nil to break the retain cycle.... qualifier and set the myController variable to nil in the completion handler: __block MyViewController
directories. ftp FTP client func call Call a given routine with parameters. getenv Get an environment variable...list Display information on allocated blocks. mem block mark Mark allocated blocks. mem block unmark...handle Display the object Id for an object handle. object info Display information on specified...Set an environment variable shl Display information on shared libraries. shl info Display detail...call group information in the system. sysctl IPNET sysctl configuration syslog syslog sysvar System variable
of several different item types, for example, **[MailItem](https://docs.microsoft.com/en-us/office/vba...)**, or **[SharingItem](https://docs.microsoft.com/en-us/office/vba/api/outlook.sharingitem)**....Outlook.Application') $outlookWasAlreadyRunning = $true }catch{ try{ $Outlook = New-Object...exit } } $test ='abc' $vars = Get-Variable #Write-Host ($vars | Format-List | Out-String) try{...#write-host "" #$outline = Get-Event #$vars = Get-Variable #write-host
3 常用断言方法 Setting an environment variable ：设置一个环境变量 pm.environment.set("variable_key", "variable_value..."); Setting a nested object as an environment variable ： 将嵌套对象设置为环境变量 var array = [1, 2, 3, 4]; pm.environment.set..."); Getting an environment variable (whose value is a stringified object) ：获取一个环境变量，其值是一个字符串化的对象 /.../ These statements should be wrapped in a try-catch block if the data is coming from an unknown source...： 清除一个环境变量 pm.environment.unset("variable_key"); Set a global variable ：设置一个全局变量 pm.globals.set("variable_key
文章背景： 上一篇文章（参见文末的参考资料[1]）提到，可以通过VBA编程，选中需要打印的多份Excel文件，进行批量打印。...VBA代码如下： Option Explicit Option Base 1 ' 消息框，无需手动点击关闭Declare PtrSafe Function MessageBoxTimeout Lib...the object variable to Nothing....Set fd = Nothing 'MsgBox "打印结束！" MessageBoxTimeout 0, "打印结束！"...参考资料： [1] VBA: 多份Excel文件的批量顺序打印 [2] VBA: 多份文件的批量顺序打印（2） [3] VBA: 快速排序算法：从原理到实现 [4] 讯飞星火大语言模型
.$2 prompt . set serveroutput on set feedback off variable total_blocks number; variable total_bytes...number; variable unused_blocks number; variable unused_bytes number; variable lastextf number;...variable last_extb number; variable lastusedblock number; EXEC DBMS_SPACE.UNUSED_SPACE(upper('$1'),...72 total_bytes: 589824 unused_blocks: 0 unused_bytes: 0 last used extent file: 7 last used extent block...sqlplus -s n1/n1 <<EOF set linesize 200 set pages 20 select * from table(dbms_space.OBJECT_GROWTH_TREND
When it’s set to True, the tag is passed the context object, as in this example....That way, template authors can reuse the values that your template tags create.To set a variable in the...If all the template tag does is set a variable, render() should return the empty string.Here’s...Variable scope in contextAny variable set in the context will only be available in the same block...until another block tag¶Template tags can work in tandem.
tensorflow的上下文管理器，详解name_scope和variable_scope with block 与上下文管理器 上下文管理器：意思就是，在这个管理器下做的事情，会被这个管理器管着。...熟悉一点python的人都知道，with block与上下文管理器有着不可分割的关系。为什么呢？...因为with Object() as obj:的时候，会自动调用obj对象的__enter__()方法，而当出去with block的时候，又会调用obj对象的__exit__方法。...# 当退出当前with block的时候， _GeneratorContextManager对象执行 # __exit__() 方法 执行 没有加decorator的_pure_variable_scope..._name_stack if not name: # Both for name=None and name="" we re-set to empty scope.
探索 测试代码是这样的： private void OnLoaded(object sender, RoutedEventArgs e) { var variable = new MainPage...于是，我们将最后一行换成别的函数别的参数： DoSomething(null); 或者将整个这一句提取成新的函数： private void OnLoaded(object sender, RoutedEventArgs...private void OnLoaded(object sender, RoutedEventArgs e) { var variable = new MainPage(); var...Ordinarily, the lifetime of a local variable is limited to execution of the block or statement with which...，以避免陈旧错误知识的误导，同时有更好的阅读体验。
语法如下： mysql> show profile block io for query 3\G mysql> show profile all for query 3\G 除了上面的block io和...all以外，还可以换成cpu（显示用户cpu时间、系统cpu时间）、ipc（显示发送和接收相关开销信息）、page faults（显示页面错误相关开销信息）、swaps（显示交换次数相关开销的信息）。...autocommit=0; 分析表，检查表和优化表 所谓分析表，就是分析关键字的分布，检查表就是检查是否存在错误，优化表就是删除或更新造成的空间浪费。...2、检查表 检查是否存在错误,关键字统计，检查视图是否有错误 Check table 表名 option ={quick |fast | medium|extended |changed} Quick...不扫描行，不检查错误连接 Fast 只检查没有被正确关闭的表 Medium 扫描行验证被删除的连接是有效的，也可以计算各行的关键字校验和。
[] { "#", Character.valueOf('#'), Block.dirt }); } 上述代码将导致以下错误： java:11: reached end of file...“Variable Might Not Have Been Initialized” 当方法中声明的局部变量未初始化时，就会发生这种错误。...“Non-Static Variable … Cannot Be Referenced From a Static Context” 当编译器尝试从静态方法（@javinpaul）访问非静态变量时，就会发生此错误...以下代码就可以接受： AClass[] array = {object1, object2} 即： AClass[] array = new AClass[2]; ...array[0] = object1...;array[1] = object2; 而非： AClass[] array; ...array = {object1, object2}; 阅读此关于如何在Java软件中初始化数组的讨论。
三：变量 1）在模板中添加变量，可以使用（set）语句。 {% set name='xx' %} 之后就可以在页面文件中使用name这个变量了。...2）局部变量 可以使用with语句来创建一个内部的作用域，将set语句放在其中，这样创建的变量只在with代码块中才有效。...九：测试器 测试器主要用来判断一个值是否满足某种类型，语法是：if...is...： {% if variable is escaped%} value of variable: {{ escaped...}} {% else %} variable is not escaped {% endif %} Jinja2中测试器有： callable(object)：是否可调用。...string(object)：是否是一个字符串。 sequence(object)：是否是一个序列。 number(object)：是否是一个数字。 odd(object)：是否是奇数。
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