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中文网（自研/维护）拓展 · App Inventor 2 中文网
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事件
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方法
RandomNumCode(length)
返回一个指定位数随机数字码。
SendSms(phoneNumber,signName,templateCode,templateParam)
发送短信。参数：手机号，签名名称，模板CODE，模板参数JSON
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Most tricky/useful commands for gdb debugger [closed]
Can you post your most tricky and useful commands while you run a debugger like gdb or dbx.
12 Answers
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Fragment onCreateView and onActivityCreated called twice
I'm developing an app using Android 4.0 ICS and fragments.
5 Answers
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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
How to I get mongo to use a mounted drive on ec2? I really do not understand. I attached a volume on ec2 formatted the drive as root and start as root and yet as root I cant access? I am running on ubuntu 12.04. No other mongo is running
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Unix - create path of folders and file
I know you can do mkdir to create a directory and touch to create a file, but is there no way to do both operations in one go?
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Akka or Reactor [closed]
...g a new project (java-based). I need to build it as a modular, distributed and resilient architecture.
3 Answers
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Rails ActiveRecord date between
I need to query comments made in one day. The field is part of the standard timestamps, is created_at . The selected date is coming from a date_select .
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Unable to locate tools.jar
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Yes, you've downloaded and installed the Java Runtime Environment (JRE) instead of the Java Development Kit (JDK). The latter has the tools.jar, java.exe, javac.exe, etc.
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How to make a HTTP request using Ruby on Rails?
...e) I should make a request to that website (in my case a HTTP GET request) and receive the response.
7 Answers
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std::enable_if to conditionally compile a member function
I am trying to get a simple example to work to understand how to use std::enable_if . After I read this answer , I thought it shouldn't be too hard to come up with a simple example. I want to use std::enable_if to choose between two member-functions and allow only one of them to be used.
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