大约有 15,630 项符合查询结果（耗时：0.0330秒） [XML]
Using reCAPTCHA on localhost
... the allowed domains for the reCAPTCHA account in question to resolve the "ERROR: Invalid domain for site key" error.
– Ben Johnson
Jul 8 '15 at 0:29
...
dd: How to calculate optimal blocksize? [closed]
...
dd_obs_test.sh:
#!/bin/bash
# Since we're dealing with dd, abort if any errors occur
set -e
TEST_FILE=${1:-dd_obs_testfile}
TEST_FILE_EXISTS=0
if [ -e "$TEST_FILE" ]; then TEST_FILE_EXISTS=1; fi
TEST_FILE_SIZE=134217728
if [ $EUID -ne 0 ]; then
echo "NOTE: Kernel cache will not be cleared bet...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...uce a ResultSet and instead result in a ResultSet is from UPDATE. No Data. error.
– Bass
Jul 31 '18 at 20:58
...
Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...ther thread context than the UI thread, and that's the reason you see this error.
To remedy this, you will have to use a dispatcher as descibed in the MSDN article:
How to: Make Thread-Safe Calls to Windows Forms Controls
So instead of setting the text property directly in the serialport1_DataReceiv...
Curly braces in string in PHP
...to get a literal {$. Some examples to make it clear:
<?php
// Show all errors
error_reporting(E_ALL);
$great = 'fantastic';
// Won't work, outputs: This is { fantastic}
echo "This is { $great}";
// Works, outputs: This is fantastic
echo "This is {$great}";
echo "This is ${great}";
// Works
e...
ViewBag, ViewData and TempData
...uires typecasting for complex data type and check for
null values to avoid error.
ViewBag doesn’t require typecasting for complex data type.
ViewBag & ViewData Example:
public ActionResult Index()
{
ViewBag.Name = "Monjurul Habib";
return View();
}
public ActionResult Index()
{
...
Convert XLS to CSV on command line
...d paste this in:
if WScript.Arguments.Count < 2 Then
WScript.Echo "Error! Please specify the source path and the destination. Usage: XlsToCsv SourcePath.xls Destination.csv"
Wscript.Quit
End If
Dim oExcel
Set oExcel = CreateObject("Excel.Application")
Dim oBook
Set oBook = oExcel.Workboo...
Still Reachable Leak detected by Valgrind
... ran your sample program (after some obvious corrections) and I don't have errors but the following
==18933== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)
--18933--
--18933-- used_suppression: 2 dl-hack3-cond-1
--18933-- used_suppression: 2 glibc-2.5.x-on-SUSE-10.2-(PPC...
Insert, on duplicate update in PostgreSQL?
...ubject to race conditions that mean it might still fail with duplicate key error if a row is inserted concurrently, or might terminate with no row inserted when a row is deleted concurrently. A SERIALIZABLE transaction on PostgreSQL 9.1 or higher will handle it reliably at the cost of a very high se...
JNI converting jstring to char *
...g
env->ReleaseStringUTFChars(javaString, nativeString);
Can fix this errors:
1.error: base operand of '->' has non-pointer type 'JNIEnv {aka _JNIEnv}'
2.error: no matching function for call to '_JNIEnv::GetStringUTFChars(JNIEnv*&, _jstring*&, bool)'
3.error: no matching function ...