大约有 45,000 项符合查询结果（耗时：0.0501秒） [XML]
What is the difference between UTF-8 and ISO-8859-1?
...
332
UTF-8 is a multibyte encoding that can represent any Unicode character. ISO 8859-1 is a single-b...
How do I split a string on a delimiter in Bash?
...
32 Answers
32
Active
...
Convert data.frame columns from factors to characters
...
|
edited May 23 '17 at 12:18
Community♦
111 silver badge
answered May 17 '10 at 17:21
...
How to change a nullable column to not nullable in a Rails migration?
...
208
If you do it in a migration then you could probably do it like this:
# Make sure no null valu...
Are nested try/except blocks in python a good programming practice?
...") from None
PS. has_key() has been deprecated for a long time in Python 2. Use item in self.dict instead.
share
|
improve this answer
|
follow
|
...
How to change options of with jQuery?
...s in an object you can:
var newOptions = {"Option 1": "value1",
"Option 2": "value2",
"Option 3": "value3"
};
var $el = $("#selectId");
$el.empty(); // remove old options
$.each(newOptions, function(key,value) {
$el.append($("<option></option>")
.attr("value", value).text(ke...
How to get one value at a time from a generator function in Python?
...
Yes, or next(gen) in 2.6+.
share
|
improve this answer
|
follow
|
...
Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
...
I think a newer version of hibernate (supporting JPA 2.0) should handle this. But otherwise you can work it around by annotating the collection fields with:
@LazyCollection(LazyCollectionOption.FALSE)
Remember to remove the fetchType attribute from the @*ToMany annotation.
...
Logging uncaught exceptions in Python
...
Martin Thoma
81.2k102102 gold badges454454 silver badges700700 bronze badges
answered Jun 4 '11 at 3:26
JacindaJacind...