大约有 40,000 项符合查询结果（耗时：0.0749秒） [XML]
How to decorate a class?
...ython 2.7, (and @wraps, which maintains the original function's docstring, etc.):
def dec(klass):
old_foo = klass.foo
@wraps(klass.foo)
def decorated_foo(self, *args ,**kwargs):
print('@decorator pre %s' % msg)
old_foo(self, *args, **kwargs)
print('@decorator pos...
How to escape a JSON string to have it in a URL?
...d to urldecode() data which comes in PHP $_POST or any other (GET, REQEST, etc.). Depending on what you do from here on, you might be opening yourself for a security issue (SQL injection, etc.)
– Tit Petric
Jul 27 '17 at 7:25
...
Batch script to delete files
...ike this:
set olddir=%CD%
cd /d "path of folder"
del "file name/ or *.txt etc..."
cd /d "%olddir%"
How this works:
set olddir=%CD% sets the variable "olddir" or any other variable name you like to the directory
your batch file was launched from.
cd /d "path of folder" changes the current direct...
Connect Java to a MySQL database
... obtain connections from it, same as above:
Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT ID FROM USERS");
...
rs.close();
stmt.close();
conn.close();
...
How to efficiently compare two unordered lists (not sets) in Python?
...plementation details across versions, how many duplicates are in the data, etc.)
– Raymond Hettinger
Oct 21 '16 at 18:03
...
mongo group query how to keep fields
...
Why do you need {$first: '$age'} etc.? Is it possible to just have age: $age?
– lightalchemist
Dec 16 '17 at 8:04
5
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Difference between variable declaration syntaxes in Javascript (including global variables)?
...ernal.js */
console.info(varDeclaration == true); // could be .log, alert etc
// returns false in IE8
console.info(noVarDeclaration == true); // could be .log, alert etc
// returns false in IE8
console.info(window.hungOnWindow == true); // could be .log, alert etc
// returns true in IE8
console....
What is the standard naming convention for html/css ids and classes?
...ace where hyphens work, because they're almost always in quotes or in css, etc. But the shortcut thing still applies.
In addition to variables, class names, and ids, you also want to look at file name conventions. And Git Branches.
My office's coding group actually had a meeting a month or two a...
Debugging in Clojure? [closed]
...hen the programme's execution reaches that point, with all locals in scope etc. A couple of relevant links: The Clojure debug-repl, Clojure debug-repl tricks, how 'bout a debug-repl (on the Clojure Google group), debug-repl on Clojars.
swank-clojure does an adequate job of making SLIME's built-in...
What is the difference between a mutable and immutable string in C#?
...a string like Substring, Remove, Replace, concatenation using '+' operator etc will create a new string and return it.
See the following program for demonstration -
string str = "mystring";
string newString = str.Substring(2);
Console.WriteLine(newString);
Console.WriteLine(str);
This will print...