我正在使用ruby 1.9并试图找出我需要使用哪个正则表达式:
Encoding.default_internal = Encoding.default_external = 'utf-8'
"föö".match(/(\w+)/u)[1] == "föö"
# => false
file_get_contents函数似乎无法从.php文件中读取PHP代码.它似乎忽略了<?php标签后的所有内容.
为什么会那样？
如何从循环中打印出结果？
例如,如果我有这样简单的事情:
k[0]=2;
k[1]=3;
k[2]=4;
for (i = 0 ; i <= 2 ; i++)
{
x[i]=5*k[i];
}
如何打印x [0],x [1],x [2]的结果而不必在printf中重复数组？如在
printf("%d %d %d\n",x[0],x[1],x[2]);
我真的不想做上面的printf因为我的问题我实际上有100个值的数组,我不能重复x [0],x [1] ...一百次.
Hope someone can help out thanks loads!
I have this text file that contains approximately 22 000 lines, with each line looking like this:
12A4 (Text)
So it's in the format 4-letter/number (Hexdecimal) and then text. Sometimes there is more than one value in text, separated by a comma:
A34d (Text, Optional)
Is there any efficient way to search for the Hex and then return the first text in the parentheses? Would it be much more effective if I stored this data in SQLite?
I am using mockito and trying to mock a scala object.
object Sample { }
//test
class SomeTest extends Specification with ScalaTest with Mockito {
"mocking should succeed" in {
val mockedSample = mock[Sample]
}
}
这给了我两个编译错误.
error: Not found type Sample
error: could not find implicit value for parameter m:
scala.reflect.ClassManifest[<error>]
如果我将Sample从对象更改为类,则可以正常工作.有可能用mockito模拟scala对象吗？如果有,怎么样？
我对声明与定义的规则有点模糊.
我在funcs.h中有以下声明:
void sumTotalEnrgyAndClush(Protein &A,Protein &B,double ans[2],double enrgyA[18][18],double enrgyB[18][18]);
请注意,ans [2]在enrgyA和B之前.
在funcs.cpp文件中,定义如下所示:
void sumTotalEnrgyAndClush(Protein &A,Protein &B,double enrgyA[18][18],double enrgyB[18][18],double ans[2])
它编译(通过makefile)并正常工作.
我还注意到,如果我删除声明,编译器似乎管理得很好.
为什么参数顺序的变化不重要？难道最后3个项目都是指针,所以顺序的差异无关紧要吗？
这是一个代码片段
#import "MyCustomView.h"
@implementation MyCustomView
-(void) drawRect:(CGRect)rect {
NSLog(@"Help");
CGContextRef myContext = [[NSGraphicsContext // 1
currentContext]graphicsPort];
....
然后在1,我遇到此错误消息:
NSGraphicsContext undeclared (first use in this function)
你知道是什么造成的吗？我应该包含哪个头文件？
我正在将一个C++项目从Windows迁移到Linux,现在我需要创建一个build/make文件.我以前从未创建过build/make文件.我还需要包含Boost库以使其更复杂.它也必须是一个makefile,我还需要学习如何创建makefile,所以CMake和SCON都出来了.由于使用了Boost,IDE也出局了,我的所有IDE(Eclipse,VS等)都只在Windows上运行.我必须从头开始生成一个makefile.
那么创建Linux c ++ make文件的基础知识是什么？如何将Boost库合并到其中以使其正确链接？
到目前为止,我的makefile看起来像这样.我认为CFLAGS并且LDFLAGS是编译器和优化选项,但不完全确定.
CC = g++
CFLAGS = -wall -o3 - c
LDFLAGS = -03 -mfp-rounding-mode=n
我提供赏金,因为我仍然非常迷失.如果有人喜欢冒险,我需要在linux中编译以下内容
simple_ls.h中的标题:
#include "boost/filesystem/operations.hpp"
#include "boost/filesystem/path.hpp"
#include "boost/lexical_cast.hpp"
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
2dquicksort.h中的标题:
#include <stdio.h>
#include <ctype.h>
#include <iostream>
rawr.h中的标头:
#include <iostream> // not required by most systems
#include <fstream>
#include <iomanip>
#include <cstdlib> // or (stdlib.h) for exit()
#include <cmath>
#include <vector>
#include <limits>
#include …标准方案:ajax-heavy Web应用程序,包含可作为文件下载的报告.
问题:Internet Explorer使用黄色"安全栏"阻止文件下载.单击栏并允许下载时,整个页面将刷新,输入的数据将丢失.
Question: what counts as a blockable download? Does it look at the Content-disposition: attachment header? Does it deny downloads from POST requests? Is there any scenario at all in which it simply opens the download box without the yellow bar?
I'm a newcomer to the iPhone world. (Previously, I've developed for android.)
I've got this code in one of my Android apps:
String body = "<Item type='Customer' id= '"+id+"' action='delete'/>";
What's the same in Objective-C?