我正在尝试我的第一个 powershell 脚本,但在运行以下代码时出现错误参数错误。如何将参数传递给 powersehll 中的命令?
& "bcdedit" /store c:\boot\bcd /set {bootmgr} device partition=C:
Run Code Online (Sandbox Code Playgroud)
编辑: 此操作的工作代码是:
& "bcdedit" /store c:\boot\bcd /set "{bootmgr}" device partition=C:
Run Code Online (Sandbox Code Playgroud) 这是我尝试过的第一个powershell脚本.当我运行它时,第一部分运行良好并创建log.txt,但在再次运行后它仍然运行第1部分.如何检查日志文件是否存在?
编辑:我忘了提到我从PowerShell ISE运行脚本,如果这有所作为.
#Variables.
#Set working directory to scripts location.
$scriptpath = $MyInvocation.MyCommand.Path
$dir = Split-Path $scriptpath
#Check if log file exists.
$ChkFile = "%userprofile%\Desktop\log.txt"
$FileExists = (Test-Path $ChkFile -PathType Leaf)
#Set dir to script location.
Set-Location $dir
#Part 1.
If (!($FileExists))
{
Write-Host "Part 1"
echo 0 >>log.txt
}
#Part 2.
ElseIf ($FileExists)
{
Write-Host "Part 2"
}
Run Code Online (Sandbox Code Playgroud) 这是我第一次尝试使用资源文件.我已经看到很多适用于C#的答案,但不适用于C.任何建议?
但我知道大部分内容都在做什么
if (digitalRead(miso)) { d |= 1; }
Run Code Online (Sandbox Code Playgroud)
是一条我不明白的路线.这些代码来自Adafruit MAX31855库,用于Arduino板.我想在c中将代码移植到我的C8051F020 MCU.该代码从热电偶读取,MAX31855是MCU的数字接口.这是该文件的完整代码.我不熟悉digitalRead().上面发布的if语句是我无法解释的地方.这个if语句在uint32_t Adafruit_MAX31855::spiread32(void)函数中.
/***************************************************
This is a library for the Adafruit Thermocouple Sensor w/MAX31855K
Designed specifically to work with the Adafruit Thermocouple Sensor
----> https://www.adafruit.com/products/269
These displays use SPI to communicate, 3 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, …Run Code Online (Sandbox Code Playgroud) 我需要send和integer到一个函数,然后将它追加到一个常量字符的末尾.
int main (void)
{
append(1);
}
int append(int input)
{
const char P = 'P';
//This where I want to append 1 to P to create "P1"'
}
Run Code Online (Sandbox Code Playgroud) 运行以下代码后,一切都按照我的意愿进行,除了文件夹显示:test2﷽﷽ꮫꮫꮫꮫووو
这里发生了什么?
std::string arrString[3] = {" /C mkdir C:\\Users\\Andrew\\Desktop\\test1"," /C mkdir C:\\Users\\Andrew\\Desktop\\test2"," /C mkdir C:\\Users\\Andrew\\Desktop\\test3"};
LPWSTR cmd =L"C:\\Windows\\System32\\cmd.exe";
int i;
for(i=0; i<3; i++)
{
STARTUPINFO info={sizeof(info)};
PROCESS_INFORMATION processInfo;
vector<wchar_t> cmdline(arrString[i].begin(), arrString[i].end());
CreateProcessW(cmd, &cmdline[0], NULL, NULL, TRUE, 0, NULL, NULL, &info, &processInfo);
OutputDebugStringW(L"My output\nstring.");
}
}
Run Code Online (Sandbox Code Playgroud) 我是win32 api的新手,需要帮助尝试了解GetLogicalDrives()函数的工作原理.我正在尝试使用未使用的所有可用驱动器填充cbs_dropdownlist.这是我到目前为止所拥有的.我将不胜感激任何帮助.
void FillListBox(HWND hWndDropMenu)
{
DWORD drives = GetLogicalDrives();
for (int i=0; i<26; i++)
{
SendMessage(hWndDropMenu, CB_ADDSTRING, 0, (LPARAM)drives);
}
}
Run Code Online (Sandbox Code Playgroud) 希望学习清理此代码的方法.有没有办法在c#中应用定义的"样式"?我是新手,正在寻找收紧编程的方法.我希望能够以更简洁的方式定义边距,最大值,方向,步进频率,刻度频率,刻度线位置以及到每个滑块的过渡.
//Slider 1
Slider Slider_1 = new Slider();
Slider_1.SetValue(Grid.ColumnProperty, 0);
Slider_1.Margin = new Thickness(30, 12, 0, 0);
Slider_1.Orientation = Orientation.Vertical;
Slider_1.Maximum = 10;
Slider_1.StepFrequency = 0.25;
Slider_1.TickFrequency = 0.25;
Slider_1.TickPlacement = TickPlacement.Outside;
Slider_1.Transitions = new TransitionCollection();
Slider_1.Transitions.Add(new EntranceThemeTransition() { });
//Slider 2
Slider Slider_2 = new Slider();
Slider_2.SetValue(Grid.ColumnProperty, 1);
Slider_2.Margin = new Thickness(30, 12, 0, 0);
Slider_2.Orientation = Orientation.Vertical;
Slider_2.Maximum = 10;
Slider_2.StepFrequency = 0.25;
Slider_2.TickFrequency = 0.25;
Slider_2.TickPlacement = TickPlacement.Outside;
Slider_2.Transitions = new TransitionCollection();
Slider_2.Transitions.Add(new EntranceThemeTransition() { });
//Slider …Run Code Online (Sandbox Code Playgroud)