大约有 43,000 项符合查询结果(耗时:0.0535秒) [XML]
Is it possible to implement a Python for range loop without an iterator variable?
...range(10): pass
...
>>> _
9
>>> 1+2
3
>>> _
9
And according to Python grammar, it is an acceptable variable name:
identifier ::= (letter|"_") (letter | digit | "_")*
share
|
...
process.waitFor() never returns
...esn't return.
But it usually boils down to the fact that the executed command doesn't quit.
This, again, can have many reasons.
One common reason is that the process produces some output and you don't read from the appropriate streams. This means that the process is blocked as soon as the buffer ...
“X does not name a type” error in C++
...
When the compiler compiles the class User and gets to the MyMessageBox line, MyMessageBox has not yet been defined. The compiler has no idea MyMessageBox exists, so cannot understand the meaning of your class member.
You need to make sure MyMessageBox is defined bef...
How to draw rounded rectangle in Android UI?
I need to draw a rounded rectangle in the Android UI. Having the same rounded rectangle for TextView and EditText would also be helpful.
...
How to ignore SSL certificate errors in Apache HttpClient 4.0
...
You need to create a SSLContext with your own TrustManager and create HTTPS scheme using this context. Here is the code,
SSLContext sslContext = SSLContext.getInstance("SSL");
// set up a TrustManager that trusts everything
sslContext.init(null, new TrustManager[] { new X509TrustMa...
Reading a plain text file in Java
It seems there are different ways to read and write data of files in Java.
28 Answers
...
Get the current language in device
How can we get the current language selected in the Android device?
25 Answers
25
...
Select datatype of the field in postgres
...
So simple and nice! Now I can replace the current query that I found that is 310 characters (without the table name), 4 table join, not schema aware, expensive, and that gives 'int4' and others as types instead of integer. Thank you!
...
Remove all but numbers from NSString
I have an NSString (phone number) with some parenthesis and hyphens as some phone numbers are formatted. How would I remove all characters except numbers from the string?
...
How to implement an android:background that doesn't stretch?
I found this great thread describing how to "eat the cake and have it too", i.e. use image for a Button instead of ImageButton (which doesn't allow SetText() , resizing, etc.).
...
