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如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...自己个性的，有完善的交易思想、细致的市场分析和整体操作方案的，在风险市场的赢家都有自已的交易系统，因...这个交易系统是非机械的，适合你自己个性的，有完善的交易思想、细致的市场分析和整体操作方案的，在风险...
django test app error - Got an error creating the test database: permission denied to create databas
...the test suite, it creates a new database, in your case test_finance. The postgres user with username django does not have permission to create a database, hence the error message.
When you run migrate or syncdb, Django does not try to create the finance database, so you don't get any errors.
You ...
Is there a simple way to convert C++ enum to string?
Suppose we have some named enums:
34 Answers
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How to get the primary IP address of the local machine on Linux and OS X? [closed]
... solution that would return me the primary (first) IP address of the localhost, other than 127.0.0.1
31 Answers
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Convert absolute path into relative path given a current directory using Bash
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$ python -c "import os.path; print os.path.relpath('/foo/bar', '/foo/baz/foo')"
gives:
../../bar
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How can I install MacVim on OS X?
I am using OS X 10.9.1 (Mavericks).
4 Answers
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How can I find where Python is installed on Windows?
... your Python interpreter, type the following commands:
>>> import os
>>> import sys
>>> os.path.dirname(sys.executable)
'C:\\Python25'
Also, you can club all these and use a single line command. Open cmd and enter following command
python -c "import os, sys; print(os.path...
Is there a max array length limit in C++?
...r that has native hardware support in the integer math unit. On every x86 OS I've used, size_t is 32-bits for a 32-bit OS and 64-bits for a 64-bit OS.
– Mr Fooz
Dec 18 '09 at 22:36
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe
...s.num = i;
}
public int getNum() {
return this.num;
}
But in most cases you will want to return the wrapper class.
So either set your DB column to not allow nulls, or use a wrapper class.
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Where is PHP.ini in Mac OS X Lion? Thought it was in /usr/local/php5/lib
...ated web sharing, installed MySQL etc.
I can't seem to find my PHP files, most importantly, PHP.ini.
12 Answers
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