大约有 40,000 项符合查询结果（耗时：0.0623秒） [XML]
Iterating through a JSON object
...he list contains two dicts. The dicts contain various key/value pairs, all strings. When you do json_object[0], you're asking for the first dict in the list. When you iterate over that, with for song in json_object[0]:, you iterate over the keys of the dict. Because that's what you get when you iter...
Android: upgrading DB version and adding new table
...ldVersion, int newVersion) {
switch (oldVersion) {
case 1:
String sql = "ALTER TABLE " + TABLE_SECRET + " ADD COLUMN " + "name_of_column_to_be_added" + " INTEGER";
db.execSQL(sql);
break;
case 2:
String sql = "SOME_QUERY";
db.execSQL(sql);
...
BeanFactory vs ApplicationContext
...ssPathXmlApplicationContext {
public LazyLoadingXmlApplicationContext(String[] configLocations) {
super(configLocations);
}
/**
* Upon loading bean definitions, force beans to be lazy-initialized.
* @see org.springframework.context.support.AbstractXmlApplicationContex...
How to initialize all the elements of an array to any specific value in java
...
[Incidentally, memset in C or C++ is only of any real use for arrays of char.]
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How do I show a console output/window in a forms application?
...application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
// initialize console handles
InitConsoleHandles();
if (args.Length != 0)
{
if (args[0].Equals("waitfordebugger"))
{
MessageBox.Sh...
How can you integrate a custom file browser/uploader with CKEditor?
...ard alert dialog, such as "illegal file" or something. Set url to an empty string if the third parameter is an error message.
CKEditor's "upload" tab will submit a file in the field "upload" - in PHP, that goes to $_FILES['upload']. What CKEditor wants your server to output is a complete JavaScript...
Is passing 'this' in a method call accepted practice in java
... to argument), I just opened one of the most common java.lang classes, the String one, and of course I found instances of this use, for example
1084 // Argument is a String
1085 if (cs.equals(this))
1086 return true;
Look for (this in big "accepted" projects, you won't fa...
How do I use IValidatableObject?
...upedByMembers)
{
ModelState.AddModelError(
member.Key,
string.Join(". ", member.Select(m => m.Error)));
}
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Echo a blank (empty) line to the console from a Windows batch file [duplicate]
... @MatteoItalia, It's nothing to do with speed. If it's doing something extra (search first for a file named echo without extension) then it's wrong and if there's a file as such, it'll indeed fail. Extra points if the batchjob fails on a weekend while everyone is partying hard half-a-country awa...
Non-Relational Database Design [closed]
...DBs are a massive win, and the drawbacks of less flexible queries and some extra code for data validation seems a small price to pay.
Have you hit your head against anything that seems impossible?
Not yet. Map/reduce as a means of querying a database is unfamiliar, and requires a lot more thinking...