大约有 46,000 项符合查询结果（耗时：0.0655秒） [XML]
How can I loop through a C++ map of maps?
...+11 - you can use a ranged based for loop and simply do:
std::map<std::string, std::map<std::string, std::string>> mymap;
for(auto const &ent1 : mymap) {
// ent1.first is the first key
for(auto const &ent2 : ent1.second) {
// ent2.first is the second key
// ent2.sec...
How to Deserialize XML document
...he reader.ReadToEnd(); (that function reads the whole stream and returns a string, so the Deserialize() function couldn't use the reader anymore...the position was at the end of the stream). I also took a few liberties with the naming :).
Here are the classes:
[Serializable()]
public class Car
{
...
Create an index on a huge MySQL production table without table locking
...TER TABLE). You can run multiple commands with pt-online-schema-change by stringing them up and separated by comma.
– Alex Le
Sep 3 '15 at 15:45
...
Deleting a file in VBA
... Check here. Basically do this:
Function FileExists(ByVal FileToTest As String) As Boolean
FileExists = (Dir(FileToTest) <> "")
End Function
I'll leave it to you to figure out the various error handling needed but these are among the error handling things I'd be considering:
Check fo...
Import CSV file to strongly typed data structure in .Net [closed]
...
Use an OleDB connection.
String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\InputDirectory\\;Extended Properties='text;HDR=Yes;FMT=Delimited'";
OleDbConnection objConn = new OleDbConnection(sConnectionString);
objConn.Open()...
XML Schema minOccurs / maxOccurs default values
...xs:sequence>
<xs:element name="countryName" type="xs:string"/>
<xs:element name="capital" type="xs:string"/>
<xs:element name="nationalLanguage" type="xs:string"/>
<xs:element name="population" type="xs:double"/&...
Getting binary content in Node.js using request
...l
And then body will be of type Buffer, instead of the default, which is string.
share
|
improve this answer
|
follow
|
...
Rails Migration: Remove constraint
...way... I would use change_column like so
change_column :users, :address, :string, :null => true
Docs...
http://apidock.com/rails/ActiveRecord/ConnectionAdapters/SchemaStatements/change_column
share
|
...
Pretty-print a Map in Java
...intingMap(Map<K, V> map) {
this.map = map;
}
public String toString() {
StringBuilder sb = new StringBuilder();
Iterator<Entry<K, V>> iter = map.entrySet().iterator();
while (iter.hasNext()) {
Entry<K, V> entry = iter.next(...
How to capitalize the first letter in a String in Ruby
The upcase method capitalizes the entire string, but I need to capitalize only the first letter.
8 Answers
...