大约有 40,000 项符合查询结果（耗时：0.0540秒） [XML]
What is the difference between a mutable and immutable string in C#?
...ring str,
[1] class [mscorlib]System.Text.StringBuilder sb)
IL_0000: nop
IL_0001: ldstr "inital value"
IL_0006: stloc.0
IL_0007: ldstr "\nsecond value"
IL_000c: stloc.0
IL_000d: ldstr "\nthird value"
IL_0012: stloc.0
IL_0013: newobj instance void...
Using @property versus getters and setters
...de world. There are plenty of ways to do this in Python (getattr, setattr, __getattribute__, etc..., but a very concise and clean one is:
def set_email(self, value):
if '@' not in value:
raise Exception("This doesn't look like an email address.")
self._email = value
def get_email(s...
How to set a Fragment tag by code?
...Id, Fragment fragment, String tag) as described here: stackoverflow.com/a/13244471/4002895 @PJL Please edit your answer.This answer misleading people
– dasar
Nov 26 '14 at 12:56
...
Sphinx autodoc is not automatic enough
...posed to output the files to? I tried outputting them to Sphinx's default _build folder, but running sphinx-build -b html . ./_build doesn't pick them up.
– Cerin
Jan 6 '11 at 18:13
...
How to line-break from css, without using ?
... |
edited Apr 20 at 18:32
johannchopin
4,84855 gold badges1818 silver badges4040 bronze badges
answer...
Python unittest - opposite of assertRaises?
...
def run_test(self):
try:
myFunc()
except ExceptionType:
self.fail("myFunc() raised ExceptionType unexpectedly!")
share
|
...
In where shall I use isset() and !empty()
.....) contains some non-empty data.
To answer question 1 :
$str = '';
var_dump(isset($str));
gives
boolean true
Because the variable $str exists.
And question 2 :
You should use isset to determine whether a variable exists ; for instance, if you are getting some data as an array, you migh...
How to read if a checkbox is checked in PHP?
...="value1">
After submitting the form you can check it with:
isset($_POST['test'])
or
if ($_POST['test'] == 'value1') ...
share
|
improve this answer
|
follow
...
Why do you use typedef when declaring an enum in C++?
...
– Jonathan Leffler
Dec 21 '08 at 22:32
50
Isn't what I said in my last sentence ?
...
Wait until a process ends
...
NoldorinNoldorin
130k5151 gold badges243243 silver badges292292 bronze badges
add a comment
...