大约有 23,000 项符合查询结果（耗时：0.0324秒） [XML]
How do I get python's pprint to return a string instead of printing?
... the documentation:
Return the formatted representation of object as a string. indent,
width and depth will be passed to the PrettyPrinter constructor as
formatting parameters.
Example:
>>> import pprint
>>> people = [
... {"first": "Brian", "last": "Kernighan"},
.....
Python __str__ and lists
In Java, if I call List.toString(), it will automatically call the toString() method on each object inside the List. For example, if my list contains objects o1, o2, and o3, list.toString() would look something like this:
...
Print PHP Call Stack
... (quoting the manual) :
array(2) {
[0]=>
array(4) {
["file"] => string(10) "/tmp/a.php"
["line"] => int(10)
["function"] => string(6) "a_test"
["args"]=>
array(1) {
[0] => &string(6) "friend"
}
}
[1]=>
array(4) {
["file"] => string(10) "...
Java List.contains(Object with field value equal to x)
... this:
public boolean containsName(final List<MyObject> list, final String name){
return list.stream().filter(o -> o.getName().equals(name)).findFirst().isPresent();
}
Or alternatively, you could try something like this:
public boolean containsName(final List<MyObject> list, f...
Which is best way to define constants in android, either static class, interface or xml resource?
...rajdhami on 5/23/2017.
*/
public class Constant {
public static final String SERVER = "http://192.168.0.100/bs.dev/nrum";
// public static final String SERVER = "http://192.168.100.2/bs.dev/nrum";
public static final String API_END = SERVER + "/dataProvider";
public static final Stri...
How can I detect the encoding/codepage of a text file
...se remember one extremely important fact. It does not make sense to have a string without knowing what encoding it uses. You can no longer stick your head in the sand and pretend that "plain" text is ASCII.
There Ain't No Such Thing As Plain Text.
If you have a string, in memory, in a file, o...
Handling optional parameters in javascript
... == 2) { // if only two arguments were supplied
if (Object.prototype.toString.call(parameters) == "[object Function]") {
callback = parameters;
}
}
//...
}
You can also use the arguments object in this way:
function getData (/*id, parameters, callback*/) {
var id = arguments[...
C++ Tuple vs Struct
...ple.
struct StructData {
int X;
int Y;
double Cost;
std::string Label;
bool operator==(const StructData &rhs) {
return std::tie(X,Y,Cost, Label) == std::tie(rhs.X, rhs.Y, rhs.Cost, rhs.Label);
}
bool operator<(const StructData &rhs) {
return...
Reverse of JSON.stringify?
I'm stringyfing an object like {'foo': 'bar'}
8 Answers
8
...
Non-static variable cannot be referenced from a static context
...In your case, try this code as a starting block:
public static void main (String[] args)
{
try
{
MyProgram7 obj = new MyProgram7 ();
obj.run (args);
}
catch (Exception e)
{
e.printStackTrace ();
}
}
// instance variables here
public void run (String...