大约有 12,000 项符合查询结果（耗时：0.0371秒） [XML]
如何获取IE (控件)的所有链接（包括Frameset, iframe） - 其他 - 清泛IT社...
...候, IHTMLWindow2::get_document 调用将返回 E_ACCESSDENIED .
下面函数 HtmlWindowToHtmlDocument 对于跨域的frame 通过 IHTMLWindow2 -> IID_IWebBrowserApp -> IHTMLWindow2 绕过了限制。
// Converts a IHTMLWindow2 object to a IHTMLDocument2. Returns NULL in case of failure.
// ...
半年报披露 天涯社区被资本方看空 - 资讯 - 清泛网 - 专注C/C++及内核技术
...品电商事业部，开始运营“涯叔农场”品牌，向天涯用户提供农副产品，去年共产生1800万元平台交易额。
“现在天涯社区即便做转型也无法挽回他的颓势”，洪波在本报记者采访时指出，目前论坛已经被微博等即时社交平台所...
国务院常务会议“大数据” - 资讯 - 清泛网 - 专注C/C++及内核技术
...业、医保投入和重视更加强化，既是兜住保障的底线，也提供未来持续发展的动力。
国务院 会议 大数据
insert vs emplace vs operator[] in c++ map
...maps.)
Here's an example to demonstrate:
#include <vector>
struct foo
{
explicit foo(int);
};
int main()
{
std::vector<foo> v;
v.emplace(v.end(), 10); // Works
//v.insert(v.end(), 10); // Error, not explicit
v.insert(v.end(), foo(10)); // Also works
}
...
How do I check for nulls in an '==' operator overload without infinite recursion?
...
Use ReferenceEquals:
Foo foo1 = null;
Foo foo2 = new Foo();
Assert.IsFalse(foo1 == foo2);
public static bool operator ==(Foo foo1, Foo foo2) {
if (object.ReferenceEquals(null, foo1))
return object.ReferenceEquals(null, foo2);
ret...
Try-finally block prevents StackOverflowError
...(2^N) where N is the maximum stack depth.
Imagine the maximum depth is 5
foo() calls
foo() calls
foo() calls
foo() calls
foo() which fails to call foo()
finally calls
foo() which fails to call foo()
finally
foo() calls
...
How to use C++ in Go
... have inheritance.
Here's an example:
I have a C++ class defined as:
// foo.hpp
class cxxFoo {
public:
int a;
cxxFoo(int _a):a(_a){};
~cxxFoo(){};
void Bar();
};
// foo.cpp
#include <iostream>
#include "foo.hpp"
void
cxxFoo::Bar(void){
std::cout<<this->a<<std::endl...
C# generic type constraint for everything nullable
...
If you are willing to make a runtime check in Foo's constructor rather than having a compile-time check, you can check if the type is not a reference or nullable type, and throw an exception if that's the case.
I realise that only having a runtime check may be unaccepta...
【最全】CSS响应式布局的5种实现方式 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...大和缩小了
js 动态修改 html 根元素的 font-size 的大小，能适配不同尺寸的屏幕，不再局限于这 5 种
<script>
initPage();
function initPage() {
var clientWidth =
document.documentElement.clientWidth || document.body / clientWidth; //获取屏幕可视区宽
...
How to create an object for a Django model with a many to many field?
...ginal suggestion. It works, but isn't optimal. (Note: I'm using Bars and a Foo instead of Users and a Sample, but you get the idea).
bar1 = Bar.objects.get(pk=1)
bar2 = Bar.objects.get(pk=2)
foo = Foo()
foo.save()
foo.bars.add(bar1)
foo.bars.add(bar2)
It generates a whopping total of 7 queries:
...