大约有 8,000 项符合查询结果（耗时：0.0228秒） [XML]
Checking if a folder exists using a .bat file [closed]
...he name of your file.
For a directory look at this https://jeffpar.github.io/kbarchive/kb/065/Q65994/
C:
IF NOT EXIST C:\WIN\ GOTO NOWINDIR
CD \WIN
:NOWINDIR
trailing backslash ('\') seems to be enough to distinguish between directories and ordinary files.
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Cordova 3.5.0 Install Error- Please Install Android Target 19
...
Android SDK is not your target Android version. Target Android version 19 is the API level for android Kitkat.So in you SDK manager check if you have Android 4.4.2(API 19) installed. If you want your target API version to be different then change it in ANdroidManifest...
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
...ync() is synchronous). The use of dispatch_once() replaces the following idiom:
+ (MyClass *)sharedInstance {
static MyClass *sharedInstance;
@synchronized(self) {
if (sharedInstance == nil) {
sharedInstance = [[MyClass alloc] init];
}
}
return sharedInst...
What is Mocking?
...
Prologue: If you look up the noun mock in the dictionary you will find that one of the definitions of the word is something made as an imitation.
Mocking is primarily used in unit testing. An object under test may
have dependencies on other (complex) objects. To isolate the...
“Could not find bundler” error
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if you create a new applocation - rails new and if you get this error?
– AMIC MING
Mar 19 '13 at 0:35
2
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bundle install returns “Could not locate Gemfile”
...o the gemfile in the same command e.g.
BUNDLE_GEMFILE="MyProject/Gemfile.ios" bundle install
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How do I do a HTTP GET in Java? [duplicate]
...you want to stream any webpage, you can use the method below.
import java.io.*;
import java.net.*;
public class c {
public static String getHTML(String urlToRead) throws Exception {
StringBuilder result = new StringBuilder();
URL url = new URL(urlToRead);
HttpURLConnection co...
How to store printStackTrace into a string [duplicate]
...eturn errors.toString();
Ought to be what you need.
Relevant documentation:
StringWriter
PrintWriter
Throwable
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Convert JSON String to JSON Object c#
...json = JObject.Parse(str);
You might want to refer to Json.NET documentation.
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How do SO_REUSEADDR and SO_REUSEPORT differ?
The man pages and programmer documentations for the socket options SO_REUSEADDR and SO_REUSEPORT are different for different operating systems and often highly confusing. Some operating systems don't even have the option SO_REUSEPORT . The WEB is full of contradicting information regarding th...