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The calling thread must be STA, because many UI components require this
...
If you make the call from the main thread, you must add the STAThread attribute to the Main method, as stated in the previous answer.
If you use a separate thread, it needs to be in a STA (single-threaded apartment), which is not the case f...
mailto link with HTML body
... not a webpage on which the mailto: link will be.
– wide_eyed_pupil
Sep 19 '12 at 7:27
thanks, in Rails you can use th...
Why aren't python nested functions called closures?
...ns in Python, and they match the definition of a closure. So why are they called nested functions instead of closures ?
...
Unique ways to use the Null Coalescing operator [closed]
...lescing operator. The true and false branches of the original IF statement called the same method, replacing one of its arguments with a different value if a certain input is NULL. With the null coalescing operator, it's one call. This is really powerful when you have a method that needs two or more...
How to run a python script from IDLE interactive shell?
...t-in function: execfile
execfile('helloworld.py')
It normally cannot be called with arguments. But here's a workaround:
import sys
sys.argv = ['helloworld.py', 'arg'] # argv[0] should still be the script name
execfile('helloworld.py')
Deprecated since 2.6: popen
import os
os.popen('python ...
How to style CSS role
...e not wrong, but they rely on you using either a div or using the specific id. With this selector, you'll be able to have all kinds of crazy markup and it would still work and you avoid problems with specificity.
[role=main] {
background: rgba(48, 96, 144, 0.2);
}
div,
span {
padding: ...
MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
... REPLICATION SLAVE ON *.*
TO '<SLAVE_USER>'@'<SLAVE_HOST>'
IDENTIFIED BY '<SLAVE_PASSWORD>';
注：出于安全性和灵活性的考虑，不要把root等具有SUPER权限用户作为复制账号。
然后设置主服务器配置文件（缺省：/etc/my.cnf）：
[mysqld]
se...
Call a python function from jinja2
I am using jinja2, and I want to call a python function as a helper, using a similar syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro.
...
Advantages to Using Private Static Methods
... After you mark the methods as static, the compiler will emit non-virtual call sites to these members. Emitting non-virtual call sites will prevent a check at runtime for each call that ensures that the current object pointer is non-null. This can result in a measurable performance gain for perform...
What is function overloading and overriding in php?
...at method.
In PHP, you can only overload methods using the magic method __call.
An example of overriding:
<?php
class Foo {
function myFoo() {
return "Foo";
}
}
class Bar extends Foo {
function myFoo() {
return "Bar";
}
}
$foo = new Foo;
$bar = new Bar;
echo($foo->...