大约有 47,000 项符合查询结果（耗时：0.0482秒） [XML]
Python - When to use file vs open
...voking this
constructor directly. file is more
suited to type testing (for example,
writing "isinstance(f, file)").
Also, file() has been removed since Python 3.0.
share
|
improve this answe...
Is “double hashing” a password less secure than just hashing it once?
Is hashing a password twice before storage any more or less secure than just hashing it once?
16 Answers
...
Watch multiple $scope attributes
...
Starting from AngularJS 1.3 there's a new method called $watchGroup for observing a set of expressions.
$scope.foo = 'foo';
$scope.bar = 'bar';
$scope.$watchGroup(['foo', 'bar'], function(newValues, oldValues, scope) {
// newValues array contains the current values of the watch expression...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...erride
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing things up...
This is a known bug in the support package.
If you need to save the instance and add ...
How do I write data into CSV format as string (not file)?
... want to cast data like [1,2,'a','He said "what do you mean?"'] to a CSV-formatted string.
6 Answers
...
Storing SHA1 hash values in MySQL
...
I would use VARCHAR for variable length data, but not with fixed length data. Because a SHA-1 value is always 160 bit long, the VARCHAR would just waste an additional byte for the length of the fixed-length field.
And I also wouldn’t store th...
Easy idiomatic way to define Ordering for a simple case class
...hical order using list.sorted , but receive "No implicit Ordering defined for ...".
6 Answers
...
Win32 创建控件风格不是Win XP的解决方案 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
还需要在资源文件中加一行：
//
1 RT_MANIFEST "TestCtrlStyle.manifest"
注意，有时候，加这样一句代码在资源文件中，链接时会出错：
1>Linking...
1>CVTRES : fatal error CVT1100: duplicate resource. type:MANIFEST, name:1...
How to create an object for a Django model with a many to many field?
...= Bar.objects.get(pk=2)
foo = Foo()
foo.save()
foo.bars = [bar1, bar2]
Unfortunately, that creates one additional SELECT:
SELECT "app_bar"."id", "app_bar"."name" FROM "app_bar" WHERE "app_bar"."id" = 1
SELECT "app_bar"."id", "app_bar"."name" FROM "app_bar" WHERE "app_bar"."id" = 2
INSERT INTO "ap...
Is it Linq or Lambda?
...ier, the compiler allows you to write in query syntax but effectively transforms it to method syntax behind your back). This is just piling on the fact that both flavors are totally equivalent and will behave the same way (e.g. lambda expressions may cause closures to be created).
...