大约有 40,000 项符合查询结果（耗时：0.0243秒） [XML]
How to suppress scientific notation when printing float values?
...s really what you want? I don't: >>> print('{:f}'.format(0.000000123)) 0.000000
– duality_
May 22 '18 at 10:06
...
Difference between objectForKey and valueForKey?
...can do the following:
NSNumber *anAccountNumber = [NSNumber numberWithInt:12345];
Account *newAccount = [[Account alloc] init];
[newAccount setAccountNumber:anAccountNUmber];
NSNumber *anotherAccountNumber = [newAccount accountNumber];
Using KVC, I can access the property dynamically:
NSNumber...
MongoDB with redis
... mongoose issues a new query where it tries to find a blogpost with _id of 123, the query flows into the cache server, the cache server will check to see if it has a result for any query that was looking for an _id of 123.
If it does not exist in the cache server, this query is taken and sent on to...
How to print a groupby object
...dited Aug 24 '18 at 13:39
Seanny123
5,70277 gold badges4949 silver badges100100 bronze badges
answered Apr 30 '16 at 6:59
...
A python class that acts like dict
...ef add(id, val):
self._dict[id] = val
md = myDict()
md.add('id', 123)
...is that your 'add' method (...and any method you want to be a member of a class) needs to have an explicit 'self' declared as its first argument, like:
def add(self, 'id', 23):
To implement the operator overloadi...
Convert NaN to 0 in javascript
...ber. This has the added benefit of converting things like numeric strings '123' to a number.
The only unexpected thing may be if someone passes an Array that can successfully be converted to a number:
+['123'] // 123
Here we have an Array that has a single member that is a numeric string. It wi...
How to get everything after a certain character?
...e, then substr grabs everything from that index plus 1, onwards.
$data = "123_String";
$whatIWant = substr($data, strpos($data, "_") + 1);
echo $whatIWant;
If you also want to check if the underscore character (_) exists in your string before trying to get it, you can use the following:...
How to write URLs in Latex? [closed]
... This does not work correctly for me. For example, \url{https://asdfg.com\#123} produces # in text, however, the actual link it produces is https://asdfg.com%23123.
– MaxPowers
Aug 2 at 13:23
...
How Do I Convert an Integer to a String in Excel VBA?
...he shortest way without declaring the variable is with Type Hints :
s$ = 123 ' s = "123"
i% = "123" ' i = 123
This will not compile with Option Explicit. The types will not be Variant but String and Integer
share
...
How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
...edited Apr 13 '16 at 6:59
Rizier123
55k1616 gold badges7777 silver badges119119 bronze badges
answered Sep 17 '08 at 6:57
...