大约有 45,000 项符合查询结果（耗时：0.0607秒） [XML]
Get generated id after insert
...
The insert method returns the id of row just inserted or -1 if there was an error during insertion.
long id = db.insert(...);
where db is SQLiteDatabase.
share
|
improve this answe...
Get the first element of each tuple in a list in Python [duplicate]
...
If you don't want to use list comprehension by some reasons, you can use map and operator.itemgetter:
>>> from operator import itemgetter
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> map(itemgetter(1), ...
How to define a two-dimensional array?
...w, h = 8, 5;
Matrix = [[0 for x in range(w)] for y in range(h)]
You can now add items to the list:
Matrix[0][0] = 1
Matrix[6][0] = 3 # error! range...
Matrix[0][6] = 3 # valid
Note that the matrix is "y" address major, in other words, the "y index" comes before the "x index".
print Matrix[0]...
MVC Razor dynamic model, 'object' does not contain definition for 'PropertyName'
...d Ebbo has edited his post with this clarification:
Note (12/22/2011): now that MVC 3 has direct support for dynamic, the technique below is no longer necessary. This post is in fact what led to integrating the feature into MVC!
...
How do I remove/delete a folder that is not empty?
...
Anyone know why this functionality is not in the os package? Seems like os.rmdir is quite useless. Any good arguments for why it's implemented this way?
– Malcolm
Sep 24 '13 at 0:43
...
ReSharper warns: “Static field in generic type”
...>.Foo); // 20
}
}
As you can see, Generic<string>.Foo is a different field from Generic<object>.Foo - they hold separate values.
share
|
improve this answer
|
...
Calculating arithmetic mean (one type of average) in Python
...is a bad variable name because it looks so much like 1. Also, I would use if l rather than if len(l) > 0. See here
– zondo
Apr 13 '16 at 22:40
...
Iterate over the lines of a string
...f f2(foo=foo):
retval = ''
for char in foo:
retval += char if not char == '\n' else ''
if char == '\n':
yield retval
retval = ''
if retval:
yield retval
def f3(foo=foo):
prevnl = -1
while True:
nextnl = foo.find('\n', prevnl ...
How do I pass values to the constructor on my wcf service?
...[] baseAddresses)
: base(serviceType, baseAddresses)
{
if (dep == null)
{
throw new ArgumentNullException("dep");
}
foreach (var cd in this.ImplementedContracts.Values)
{
cd.Behaviors.Add(new MyInstanceProvider(dep));
...
A semantics for Bash scripts?
... its own right, but with features designed to make it easy to interact specifically with the operating system and filesystem. The POSIX shell's (hereafter referred to just as "the shell") semantics are a bit of a mutt, combining some features of LISP (s-expressions have a lot in common with shell wo...