大约有 40,000 项符合查询结果（耗时：0.0557秒） [XML]
How to take column-slices of dataframe in pandas
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if your using apply with lambda row, as in: df['newcol'] = df.apply(lambda row: myfunc(row), axis=1) then you can in myfunc(row){ ... use row['foo':'ant']. for example (according to this StackOverflow answer), inside the myfunc you can evalueate if any of these is non-n...
Is there a way of having git show lines added, lines changed and lines removed?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f9933325%2fis-there-a-way-of-having-git-show-lines-added-lines-changed-and-lines-removed%23new-answer', 'question_page');
}
...
How do I use prepared statements in SQlite in Android?
... /**< WHERE statement without the WHERE clause. */
new String[] { strCountryCode }, /**< Selection arguments. */
null, null, null, null);
}
/** Fill a cursor with the results. */
Cursor c = fetchByCountryCode("US");
/** Retrieve data from the fields. */
String...
How to do 3 table JOIN in UPDATE query?
...olumn = {expression} (forgive me if this blasted editor won't let me enter newlines without doing a full post)
– UncaAlby
May 31 '17 at 17:07
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Convert pem key to ssh-rsa format
...em 2048
In OpenSSL v1.0.1 genrsa is superseded by genpkey so this is the new way to do it (man genpkey):
openssl genpkey -algorithm RSA -out dummy-genpkey.pem -pkeyopt rsa_keygen_bits:2048
With ssh-keygen
ssh-keygen -t rsa -b 2048 -f dummy-ssh-keygen.pem -N '' -C "Test Key"
Converting DER to...
Override setter with arc
...t. ARC has added in the correct release of the old value and retain of the new value.
[Probably over complicated answer, but thought it was useful to show how you can go about answering this sort of ARC related question for yourself in future]
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COUNT DISTINCT with CONDITIONS
...usaderpyro That is beyond the scope of the original question. I'd create a new question for that.
– ntalbs
Aug 23 '18 at 12:11
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Why can I access TypeScript private members when I shouldn't be able to?
...t Chrome 36, Firefox 6.0, IE 11, Opera 23, and Safari 7.1.
let _counter = new WeakMap();
let _action = new WeakMap();
class Countdown {
constructor(counter, action) {
_counter.set(this, counter);
_action.set(this, action);
}
decrement() {
let counter = _counter.get(this);
if (...
Testing HTML email rendering [closed]
...
MichielMichiel
2,37611 gold badge1515 silver badges1414 bronze badges
34
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How can I post an array of string to ASP.NET MVC Controller without a form?
...' answer).
First the javascript:
function test()
{
var stringArray = new Array();
stringArray[0] = "item1";
stringArray[1] = "item2";
stringArray[2] = "item3";
var postData = { values: stringArray };
$.ajax({
type: "POST",
url: "/Home/SaveList",
dat...