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std::string的截取字符串的方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
std::string的截取字符串的方法例如截取ip:port，代码如下：std::string ip("127.0.0.1:8888");int index = ip.find_last_of(':'); ipip.substr(0, index)....例如截取ip:port，代码如下：
std::string ip("127.0.0.1:8888");
int index = ip.find_last_of(':');
//ip
ip.substr(0, in...
Python glob multiple filetypes
... not possible. you can use only:
* matches everything
? matches any single character
[seq] matches any character in seq
[!seq] matches any character not in seq
use os.listdir and a regexp to check patterns:
for x in os.listdir('.'):
if re.match('.*\.txt|.*\.sql', x):
print x
...
How can I pass data from Flask to JavaScript in a template?
...ask provides a Jinja filter for this: tojson dumps the structure to a JSON string and marks it safe so that Jinja does not autoescape it.
<html>
<head>
<script>
var myGeocode = {{ geocode|tojson }};
</script>
</head>
<body>
<p>Hello ...
Can you give a Django app a verbose name for use throughout the admin?
... the sense that it only effects what's shown to the user. It's the literal string used to name the table in the database, which requires a schema migration if you're changing an existing model.
– Cerin
Apr 11 '12 at 16:14
...
How do I copy a string to the clipboard on Windows using Python?
I'm trying to make a basic Windows application that builds a string out of user input and then adds it to the clipboard. How do I copy a string to the clipboard using Python?
...
How do I make calls to a REST api using C#?
...amespace ConsoleProgram
{
public class DataObject
{
public string Name { get; set; }
}
public class Class1
{
private const string URL = "https://sub.domain.com/objects.json";
private string urlParameters = "?api_key=123";
static void Main(string[...
Switch on Enum in Java [duplicate]
...nd would make for some convenient code. Also this question could apply to String 's. You can switch on a char , but not a String ...?
...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...as to rewrite the pascal FOR loop myself in assembly, at which point these extra instructions no longer had a positive effect. Perhaps free pascal's generated code was harder for the processor to predict than the simple counter I replaced it with.
– tangentstorm
...
How to serialize a TimeSpan to XML
...[XmlElement(DataType="duration", ElementName="TimeSinceLastEvent")]
public string TimeSinceLastEventString
{
get
{
return XmlConvert.ToString(TimeSinceLastEvent);
}
set
{
TimeSinceLastEvent = string.IsNullOrEmpty(value) ?
TimeSpan.Zero : XmlConver...
What's wrong with this 1988 C code?
...colon after the 1 and the 0, when IN and OUT got replaced in the code, the extra semicolon after the number produced invalid code, for instance this line:
else if (state == OUT)
Ended up looking like this:
else if (state == 0;)
But what you wanted was this:
else if (state == 0)
Solution: re...