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解决：CTreeCtrl控件SetCheck无效的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...择状态是一个常规的
做法，我就不打算修改这些代码的位置，而采用提前给它加载图标列表的方法。方法如下：
1、在资源中添加一个位图资源IDB_BITMAP1，尺寸拉伸成48*16。（长48，高16，共三个图标）
2、在位图上面画三...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...接收的数据
int len = netStream.Read(data, 0, data.Length); //从位置开始，读取到字节数组末尾
string line = Encoding.Default.GetString(data, 0, len); //把收到的字节转换为字符串
}
客户端：
TcpClient client = new TcpClient();//客户端tcp对象
client...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...tialization;condition;update){
But what about:
var myarray = [];
myarray[100] = "foo";
myarray.push("bar");
Try this:
var myarray = [], i;
myarray[100] = "foo";
myarray.push("bar");
myarray[150] = "baz";
myarray.push("qux");
alert(myarray.length);
for(i in myarray){
if(myarray.hasOwnPropert...
Extract subset of key-value pairs from Python dictionary object?
...3.1-5)] on linux2
import numpy.random as nprnd
...: keys = nprnd.randint(100000, size=10000)
...: bigdict = dict([(_, nprnd.rand()) for _ in range(100000)])
...:
...: %timeit {key:bigdict[key] for key in keys}
...: %timeit dict((key, bigdict[key]) for key in keys)
...: %timeit dict(map(...
浅谈HTML5 & CSS3的新交互特性 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...避免了以往的网页在拖拽释放过程中需要不停修改元素的位置，代码繁多的弊端。
CSS3新特性
1. RGBa
CSS3的RGBa新特性允许你对每个元素进行色彩以及透明度的设置。而原来常用的opacity命令只能对元素及其子元素进行设置。
2. ...
How to pull a random record using Django's ORM?
... 54950. Surely list[54950] does not exist because your queryst's length is 100. It will throw index out of bound exception. I do not know why so many people upvoted this and this was marked as accepted answer.
– sajid
Jun 22 '18 at 11:43
...
How can I get list of values from dict?
...())
%timeit list(small_df.values())
big_ds = {x: str(x+42) for x in range(1000000)}
big_df = {x: float(x+42) for x in range(1000000)}
print('Big Dict(str)')
%timeit [*big_ds.values()]
%timeit [].extend(big_ds.values())
%timeit list(big_ds.values())
print('Big Dict(float)')
%timeit [*big_df.values...
Difference between ActionBarSherlock and ActionBar Compatibility
...>
<item
android:id="@+id/action_1"
android:orderInCategory="100"
android:showAsAction="always"
android:title="@string/action1"/>
<item
android:id="@+id/action_2"
android:orderInCategory="100"
android:showAsAction="ifRoom"
android:title="@string/action2"/...
Custom thread pool in Java 8 parallel stream
...parallelism", "20");
s.parallel().forEach(i -> {
try { Thread.sleep(100); } catch (Exception ignore) {}
System.out.print((System.currentTimeMillis() - start) + " ");
});
The output is:
215 216 216 216 216 216 216 216 315 316 316 316 316 316 316 316 415 416 416 416
So you can see t...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
..._log nvarchar(50);
DECLARE @destDb nvarchar(50);
DECLARE @destMdf nvarchar(100);
DECLARE @destLdf nvarchar(100);
DECLARE @sqlServerDbFolder nvarchar(100);
SET @sourceDb = 'db1'
SET @sourceDb_log = @sourceDb + '_log'
SET @backupPath = 'E:\tmp\' + sourceDb + '.bak' --ATTENTION: file must already exis...