我有工作目录(#1),其中包含供应商目录(#2).有一个依赖项,我想手动拉动没有composer(php版本的npm/gem).我在#1工作,没有保存/提交更改,当我决定要更新#2中的库时.我导航到vendor/myname,并做了git pull repository.
不幸的是,它开始拉动并合并到#1,而不是在vendor文件夹中创建新目录.
我现在有:
我想"撤消"最后一个git pull而不会丢失我对文件夹#1所做的任何更改.我怎样才能做到这一点?
以来
为什么有人对子级宁愿std::vector到std::deque?
如何将NSImage保存为某个目录中的新文件(png,jpg,...)?
我正在使用LazyFoo的SDL2.0教程,使用Code :: Blocks 13.12.我已经毫无困难地将SDL2链接并在VS2010中运行但是已经更改了IDE并遇到了这个错误:
winapifamily.h:没有这样的文件或目录
我认为一切都是正确的.我已将程序指向我的SDL2 include和lib目录.
Buildlog :(文件中出现错误:..\include\SDL2\SDL_platform.h)
=== Build:在SDL2_Setup中调试(编译器:GNU GCC编译器)===
致命错误:winapifamily.h:没有这样的文件或目录
===构建失败:1个错误,0个警告(0分钟,0秒(秒))===
这是我第一次在这里问一个问题.我在Google上找到答案并在此处搜索现有的问题/答案,但无法解决问题.这是我的代码.
我的代码:
// Using SDL and standard IO
#include <SDL.h>
#include <stdio.h>
// Screen dimension constants
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
int main( int argc, char* args[] )
{
// The window we'll be rendering to
SDL_Window* window = NULL;
// The surface contained by the window
SDL_Surface* screenSurface = NULL;
// Initialize SDL
if( SDL_Init( SDL_INIT_VIDEO) < 0 ) …Run Code Online (Sandbox Code Playgroud) 是否由标准保证,std::string如果从较小的字符串重新分配,则不会自发地回放分配的内存?
换一种说法:
std::string str = "Some quite long string, which needs a lot of memory";
str = "";
str = "A new quite long but smaller string"; // Guaranteed to not result in a heap allocation?
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我问,因为我依赖于此以避免堆碎片.
以下代码输出
[[100, 200, 300], [100, 200, 300]].
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但是,我的期望是
[[100, 200, 300], [100, 200]],
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我哪里错了?
public static void main(String[] args) {
ArrayList<ArrayList<Integer>> outer = new ArrayList<ArrayList<Integer>>();
ArrayList<Integer> inner = new ArrayList<Integer>();
inner.add(100);
inner.add(200);
outer.add(inner);
outer.add(inner);
outer.get(0).add(300);
System.out.println(outer);
}
Run Code Online (Sandbox Code Playgroud) 我从LogCat收到这些错误:
10-30 00:31:51.494: D/CameraHal(1205): CameraHal setOverlay/1/00000000/00000000
10-30 00:31:51.494: E/CameraHal(1205): Trying to set overlay, but overlay is null!, line:3472
10-30 00:31:51.494: W/CameraService(1205): Overlay create failed - retrying
...
10-30 00:31:52.526: E/CameraService(1205): Overlay Creation Failed!
...
10-30 00:31:52.588: E/AndroidRuntime(5040): FATAL EXCEPTION: main
10-30 00:31:52.588: E/AndroidRuntime(5040): java.lang.RuntimeException: startPreview failed
10-30 00:31:52.588: E/AndroidRuntime(5040): at android.hardware.Camera.startPreview(Native Method)
10-30 00:31:52.588: E/AndroidRuntime(5040): at com.matthewmitchell.nightcam.CameraSurfaceView.surfaceCreated(CameraSurfaceView.java:47)
10-30 00:31:52.588: E/AndroidRuntime(5040): at android.view.SurfaceView.updateWindow(SurfaceView.java:544)
10-30 00:31:52.588: E/AndroidRuntime(5040): at android.view.SurfaceView.dispatchDraw(SurfaceView.java:341)
10-30 00:31:52.588: E/AndroidRuntime(5040): at android.view.ViewGroup.drawChild(ViewGroup.java:1638)
10-30 00:31:52.588: E/AndroidRuntime(5040): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1367)
10-30 00:31:52.588: E/AndroidRuntime(5040): …Run Code Online (Sandbox Code Playgroud) 我想知道如何使用$ .ajax发布数组.我的数组是这样的:
var a = new Array();
a['test'] = 1;
a['test2'] = 2;
and so on...
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我试过了:
$.ajax({
url: baseUrl+"chat.php",
data: { vars: a},
type: 'post',
success: function(data) {
alert(data);
}});
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有什么建议?
我从PHP来到ruby.我怎么能在红宝石中做下一件事?
$className = 'ArrayObject';
$arrayObject = new $className();
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FileInfo[] FileInformation = DirectoryInfo.GetFiles(textBoxPath.Text);
for (int i = 0; i <= FileInformation.Length; i++)
{
File.Move(FileInformation[i].DirectoryName, FileInformation[i].Directory + "File" + i);
}
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VisualSudio说这是错误:
System.IO.DirectoryInfo.GetFiles(textBoxPath.Text);