大约有 44,000 项符合查询结果（耗时：0.0302秒） [XML]
乐高机器人®组件 · App Inventor 2 中文网
... of a motor on the robot.
KeepAlive()
Keep Alive. Returns the current sleep time limit in milliseconds.
ListFiles(wildcard)
Returns a list containing the names of matching files found on the robot.
LsGetStatus(sensorPortLetter)
Returns the count of available bytes to read.
LsRead(s...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...t count = clients.GetAllSocket(sock,MAX_CLIENT);
if(count==0){
sleep(2);
if(toStop){
printf("RecvThread: exit./n");
return NULL;
}
continue;
}
FD_ZERO(&readSet);
int maxfd=0;
for(int i=0;i<count;i++){
printf("--%d",sock...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... if ( ! display.readAndDispatch())
33 display.sleep();
34 }
35 return result;
36 }
37
38 protected void createContents() {
39 shell = new Shell(getParent(), SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
40 shel...
Difference between System.DateTime.Now and System.DateTime.Today
Can anyone explain the difference between System.DateTime.Now and System.DateTime.Today in C#.NET? Pros and cons of each if possible.
...
Django datetime issues (default=datetime.now())
...
it looks like datetime.now() is being evaluated when the model is defined, and not each time you add a record.
Django has a feature to accomplish what you are trying to do already:
date = models.DateTimeField(auto_now_add=True, blank=True)
or
...
How do you get a timestamp in JavaScript?
...ny alteration).
Details:
On almost all current browsers you can use Date.now() to get the UTC timestamp in milliseconds; a notable exception to this is IE8 and earlier (see compatibility table).
You can easily make a shim for this, though:
if (!Date.now) {
Date.now = function() { return new ...
Temporarily disable auto_now / auto_now_add
...odels.CharField(max_length=255)
updated_at = models.DateTimeField(auto_now=True, auto_now_add=True)
# my tests
foo = FooBar.objects.get(pk=1)
# force a timestamp
lastweek = datetime.datetime.now() - datetime.timedelta(days=7)
FooBar.objects.filter(pk=foo.pk).update(updated_at=lastweek)
# do...
DateTime.Now vs. DateTime.UtcNow
...ndering what exactly are the principles of how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
...
Django auto_now and auto_now_add
...
Any field with the auto_now attribute set will also inherit editable=False and therefore will not show up in the admin panel. There has been talk in the past about making the auto_now and auto_now_add arguments go away, and although they still exist...
How to get datetime in JavaScript?
...t; 10) ? "0" + num : num + "";
}
window.onload = function() {
var now = new Date();
var strDateTime = [[AddZero(now.getDate()),
AddZero(now.getMonth() + 1),
now.getFullYear()].join("/"),
[AddZero(now.getHours()),
AddZero(now.getMinutes())].join("...