大约有 47,000 项符合查询结果（耗时：0.0528秒） [XML]
How to draw polygons on an HTML5 canvas?
I need to know how to draw polygons on a canvas. Without using jQuery or anything like that.
9 Answers
...
How to get the CPU Usage in C#?
...lue();
System.Threading.Thread.Sleep(1000);
// now matches task manager reading
dynamic secondValue = cpuCounter.NextValue();
return secondValue;
}
private void Timer1_Tick(Object sender, EventArgs e)
{
int cpuPercent = (int)getCPUC...
DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
...s way:
try:
code_that_executes_bad_query()
# transaction on DB is now bad
except:
pass
# transaction on db is still bad
code_that_executes_working_query() # raises transaction error
There nothing wrong with the second query, but since the real error was caught, the second query is th...
“Git fatal: ref HEAD is not a symbolic ref” while using maven release plugin
...ith a Multibranch Project Setup.
I previously used checkout scm command.
Now I am using the following code:
checkout([
$class: 'GitSCM',
branches: scm.branches,
extensions: scm.extensions + [[$class: 'CleanCheckout'], [$class: 'LocalBranch', loca...
Converting from a string to boolean in Python?
Does anyone know how to do convert from a string to a boolean in Python? I found this link . But it doesn't look like a proper way to do it. I.e. using built-in functionality, etc.
...
Django : How can I see a list of urlpatterns?
... @NathanIngram The "print(''.join(p))" won't work because it's now a list of tuples instead of a list of strings, try "print(''.join(p[0]))".
– Cesar Canassa
Jul 9 '19 at 15:42
...
How to scroll HTML page to given anchor?
...
This is a clean solution, however as of now it doesn't allow any tweaking, it does a hard scroll. There is an experimental parameter scrollIntoViewOptions that has a behavior: "smooth" option, but it is currently compatible with Firefox only.
–...
How to define an empty object in PHP
...e creating a new one. The problem that needs fixing is that people should know what stdClass does.
– Pacerier
Mar 25 '15 at 5:04
2
...
How to set a Default Route (To an Area) in MVC
... {
return (ch == '/');
}
return true;
}
}
Now as stated, this isn't a concrete engine, so you have to create that as well. This part, fortunately, is much easier, all we need to do is set the default formats and actually create the views:
AreaAwareViewEngine.cs
publ...
How do I delete rows in a data frame?
...a and have a look around and reorder the data. Your row deletion code will now delete the wrong rows, and worse, you are unlikely to get any errors warning you that this has occurred.
Better strategy
A better strategy is to delete rows based on substantive and stable properties of the row. For exa...