大约有 40,000 项符合查询结果（耗时：0.0591秒） [XML]
How to clear stringstream? [duplicate]
...
Typically to 'reset' a stringstream you need to both reset the underlying sequence to an empty string with str and to clear any fail and eof flags with clear.
parser.str( std::string() );
parser.clear();
Typically what happens is that the first ...
sed fails with “unknown option to `s'” error [closed]
...variable contains them and the final command will be something like sed "s/string/path/to/something/g", containing way too many slashes.
Since sed can take any char as delimiter (without having to declare the new delimiter), you can try using another one that doesn't appear in your replacement stri...
ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件函数 safeGetline：std::istream& safeGetline(std::istream& is, std::string& t){ t clear(); 使用std::streambuf 函数 safeGetline：
std::istream& safeGetline(std::istream& is, std::string& t)
{
t.clear();
//这比使用std::istream逐个读取它们要快。
//以...
Using StringWriter for XML Serialization
...lly added <?xml version="1.0" encoding="utf-8"?><test/> to the string, then declaring the SqlParameter to be of type SqlDbType.Xml or SqlDbType.NVarChar would give you the "unable to switch the encoding" error. Then, when inserting manually via T-SQL, since you switched the declared enco...
How to disable Django's CSRF validation?
...ble CSRF and have session authentication for the whole app, you can add an extra middleware like this -
class DisableCSRFMiddleware(object):
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
setattr(request, '_dont_enforce_csrf_checks', True)...
CSS: background image on background color
...e box shadow you can always use a pseudo element for the image without any extra HTML:
.btn{
position: relative;
background-color: #6DB3F2;
}
.btn:before{
content: "";
display: block;
width: 100%;
height: 100%;
position:absolute;
top:0;
left:0;
background-ima...
Should I implement __ne__ in terms of __eq__ in Python?
... work (assuming SQLAlchemy knows how to insert MyClassWithBadNE into a SQL string at all; this can be done with type adapters without MyClassWithBadNE having to cooperate at all), passing the expected proxy object to filter, while:
results = session.query(MyTable).filter(MyClassWithBadNE() != MyTa...
What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
...Core Foundation objects and memory allocated using malloc() for types like char*. ARC does not manage these types, only Objective-C objects, so you'll still need to deal with them yourself. Core Foundation types can be particularly tricky, because sometimes they need to be bridged across to matchi...
Suppress warning messages using mysql from within Terminal, but password written in bash script
...
I use something like:
mysql --defaults-extra-file=/path/to/config.cnf
or
mysqldump --defaults-extra-file=/path/to/config.cnf
Where config.cnf contains:
[client]
user = "whatever"
password = "whatever"
host = "whatever"
This allows you to have multiple config f...
Java Timestamp - How can I create a Timestamp with the date 23/09/2007?
...w Timestamp(time); giving error that no constructor like this which take a string value :(
– Bhanu Sharma
May 14 '14 at 13:02
...