大约有 44,000 项符合查询结果(耗时:0.0481秒) [XML]
Propagate all arguments in a bash shell script
... This does this work for pure pass through of quoted/escaped strings: Observe: cat rsync_foo.sh #!/bin/bash echo "$@" rsync "$@" ./rsync_foo.sh -n "bar me" bar2 bar me bar2skipping directory bar me Is it possible to have shell script that can see the ...
What's the “Content-Length” field in HTTP header?
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could you forge this number? like POST a string param with huge length but set your content-length to 1?
– Shih-Min Lee
Sep 2 '15 at 6:47
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C# elegant way to check if a property's property is null
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You're obviously looking for the Nullable Monad:
string result = new A().PropertyB.PropertyC.Value;
becomes
string result = from a in new A()
from b in a.PropertyB
from c in b.PropertyC
select c.Value;
This returns null, ...
Why do loggers recommend using a logger per class?
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{
class log
{
public static async void Log(int severity, string message)
{
await Task.Run(() => LogIt(severity, message));
}
private static void LogIt(int severity, string message)
{
StackTrace st = new StackTrace();
...
How do I join two SQLite tables in my Android application?
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You need rawQuery method.
Example:
private final String MY_QUERY = "SELECT * FROM table_a a INNER JOIN table_b b ON a.id=b.other_id WHERE b.property_id=?";
db.rawQuery(MY_QUERY, new String[]{String.valueOf(propertyId)});
Use ? bindings instead of putting values into raw ...
How to find out if an item is present in a std::vector?
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In C++11 you can use any_of. For example if it is a vector<string> v; then:
if (any_of(v.begin(), v.end(), bind(equal_to<string>(), _1, item)))
do_this();
else
do_that();
Alternatively, use a lambda:
if (any_of(v.begin(), v.end(), [&](const std::string& ele...
How to Disable landscape mode in Android?
...or example:
<activity android:name=".SomeActivity"
android:label="@string/app_name"
android:screenOrientation="portrait" />
EDIT: Since this has become a super-popular answer, I feel very guilty as forcing portrait is rarely the right solution to the problems it's frequently applied...
Pretty printing XML in Python
....minidom
dom = xml.dom.minidom.parse(xml_fname) # or xml.dom.minidom.parseString(xml_string)
pretty_xml_as_string = dom.toprettyxml()
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Shell command to sum integers, one per line?
...rz1<rp does the following:
[ interpret everything to the next ] as a string
+ push two values off the stack, add them and push the result
z push the current stack depth
1 push one
<r pop two values and execute register r if the original top-of-stack (1)
is smaller
] e...
Why doesn't java.lang.Number implement Comparable? [duplicate]
...programmers could override. This is no excuse. The same problem exists for Strings when it comes to empty strings or null references. Is a null reference greater than or less than the string "foo"? Sun picked an ordering that makes sense.
– Jason
Dec 2 '15 at 1...
