Java和C++中有两个相似的定义,但行为完全不同.
Java版本:
class base{
public void func1(){
func2();
}
public void func2(){
System.out.println(" I am in base:func2() \n");
}
}
class derived extends base{
public void func1(){
super.func1();
}
public void func2(){
System.out.println(" I am in derived:func2() \n");
}
};
public class Test
{
public static void main(String[] args){
derived d = new derived();
d.func1();
}
}
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输出:
I am in derived:func2()
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C++版本:
#include <stdio.h>
class base
{
public:
void func1(){
func2();
}
void func2(){
printf(" I am in base:func2() …Run Code Online (Sandbox Code Playgroud) 尝试使用console.log()但它总是打印undefined.
尝试使用像Console.log IE9这样的解决方案, 它也不起作用.
在这个IE11文档中,有以下句子:
Last but not least, forget about console.log(). The new tools now support Tracepoints easily allowing you to monitor specific values the same way you would via console.log().
那是什么意思?如何使用console.log在IE11中打印变量?
系统:Windows 7(VirtualBox IE图像)
IE版:11
这似乎console.dir()是一种选择,但是怎么样console.log()?它在文件中,但为什么不生效?
join定义bind以将组合数据结构展平为单个结构.
从类型的系统视图,(+) 7 :: Num a => a -> a可被视为一个Functor,(+) :: Num a => a -> a -> a可以被认为是一个Functor的Functor,如何获得一些关于它的直觉,而不是仅仅依靠类型系统?为什么join (+) 7 === 14?
即使可以通过函数绑定过程手动步进来获得最终结果,但如果给出一些直觉,那将是很好的.
这是来自NICTA演习.
-- | Binds a function on the reader ((->) t).
--
-- >>> ((*) =<< (+10)) 7
-- 119
instance Bind ((->) t) where
(=<<) ::
(a -> ((->) t b))
-> ((->) t a)
-> ((->) t …Run Code Online (Sandbox Code Playgroud) #include <iostream>
int main(){
int a = 1;
long long b = 2;
std::cout<<(a<b);
std::cout<<std::min(a, b);
return 0;
}
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> In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0,
> from /usr/include/c++/4.8/ios:40,
> from /usr/include/c++/4.8/ostream:38,
> from /usr/include/c++/4.8/iostream:39,
> from sum_to.cpp:1: /usr/include/c++/4.8/bits/stl_algobase.h:239:5: note: template<class
> _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
> min(const _Tp& __a, const _Tp& __b, _Compare __comp)
> ^ /usr/include/c++/4.8/bits/stl_algobase.h:239:5: note: template argument deduction/substitution failed: sum_to.cpp:7:29:
> note: deduced conflicting types for parameter ‘const _Tp’ (‘int’ and …Run Code Online (Sandbox Code Playgroud) 当我键入self.弹出窗口时会自动选择第一个弹出窗口,无论给出什么输入都不会改变.例如,显示匹配1的52.
After <Esc>用于返回正常模式并再次进入插入模式,然后YouCompleteMe再次正常工作.它将显示Back at Original并自动更新不同的输入.
操作系统:Kubuntu 13.04
Vim版本:7.4.5
可能相关的插件:ultisnips
日志:
~/vimConf ? ± master ? ? 2014-02-12 16:37:37,251 - DEBUG - Global extra conf not loaded or no function YcmCorePreload
serving on localhost:
2014-02-12 16:37:38,931 - INFO - Received health request
2014-02-12 16:37:38,935 - INFO - Received event notification
2014-02-12 16:37:38,935 - DEBUG - Event name: BufferVisit
2014-02-12 16:37:39,012 - INFO - Received event notification
2014-02-12 16:37:39,013 - DEBUG - Event name: FileReadyToParse …Run Code Online (Sandbox Code Playgroud) c++ ×2
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