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TCPClient TCP客户端扩展:连接TCP服务器进行文本消息通信 · App Inventor 2 中文网

...、ISO-8859-1、UTF-16BE、UTF-16LE、UTF-16。 字符集US-ASCII Charset_USASCII US-ASCII 字符集常量。 字符集UTF-8 Charset_UTF8 UTF-8 字符集常量。 字符集ISO-Latin-1 Charset_ISO_Latin_1 ISO-8859-1 字符集常量。 字符集UTF-16BE Charset_UTF16BE UTF-16BE 字符...
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How to add 'ON DELETE CASCADE' in ALTER TABLE statement

...t instead of modify constraint. Now this is the command: ALTER TABLE child_table_name ADD CONSTRAINT fk_name FOREIGN KEY (child_column_name) REFERENCES parent_table_name(parent_column_name) ON DELETE CASCADE; s...
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How do I install the OpenSSL libraries on Ubuntu?

...struction stackoverflow.com/a/49578644/7315276 – ɛIc_ↄIз Apr 10 '19 at 8:54  |  show 3 more comments ...
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What is the use of making constructor private in a class?

...tor (C++): Iterator Container::begin() { return Iterator(this->beginPtr_); } // Iterator(pointer_type p) constructor is private, // and Container is a friend of Iterator. share | improve th...
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How can you zip or unzip from the script using ONLY Windows' built-in capabilities?

...rks.. so I am guessing you dont need .NET 4.5 – alpha_989 Mar 9 '18 at 18:17 ...
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How to build query string with Javascript

...ues from the form .. it's not perfect but it fits my needs. function form_params( form ) { var params = new Array() var length = form.elements.length for( var i = 0; i < length; i++ ) { element = form.elements[i] if(element.tagName == 'TEXTAREA' ) { ...
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How to log something in Rails in an independent log file?

...t like the usual Rails logger: class User < ActiveRecord::Base def my_logger @@my_logger ||= Logger.new("#{Rails.root}/log/my.log") end def before_save my_logger.info("Creating user with name #{self.name}") end end Here I used a class attribute to memoize the logger. This way ...
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Optional Parameters in Go?

...amp;Foobar{} // ... (write initializations with default values)... for _, op := range options{ err := op(fb) if err != nil { return nil, err } } return fb, nil } where each option is a function which mutates the Foobar. Then provide convenient ways for your user to use or...
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How can I show hidden files (starting with period) in NERDTree?

...reeShowHidden=1 For more detail, access the NERDTree help file :help NERD_tree.txt and search for "hidden". share | improve this answer | follow | ...
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How do I set up IntelliJ IDEA for Android applications?

...n a Mac, the Java JDK appears at /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk – emrys57 Nov 22 '12 at 14:13 1 ...