大约有 6,884 项符合查询结果(耗时:0.0349秒) [XML]
What are the use(s) for tags in Go?
...hday *time.Time
Email string `gorm:"type:varchar(100);unique_index"`
Role string `gorm:"size:255"` // set field size to 255
MemberNumber *string `gorm:"unique;not null"` // set member number to unique and not null
Num int `gorm:"AUTO_INCREMENT"` // set num t...
android get real path by Uri.getPath()
...} else {
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
result = cursor.getString(idx);
cursor.close();
}
return result;
}
NOTE: managedQuery() method is deprecated, so I am not using it.
Last edit: Improvemen...
How do I add a foreign key to an existing SQLite table?
...MA
foreign_keys=OFF.
Start a transaction.
Remember the format of all indexes and triggers associated with
table X. This information will be needed in step 8 below. One way to
do this is to run a query like the following: SELECT type, sql FROM
sqlite_master WHERE tbl_name='X'.
Use CREAT...
Convert integer into its character equivalent, where 0 => a, 1 => b, etc
...
FYI JScript (IE) does not support the index operator [] on strings.
– Crescent Fresh
Jun 29 '10 at 22:21
4
...
Uses for Optional
...e case when it is important that a certain element is located at a certain index, but the element can be present or not. That is clearly communicated by a List<Optional<T>> type. If on the other hand it is only important which objects that are members some some collection then there is n...
How to print to console using swift playground?
...pping the string in println(), simply output the string. For example:
for index in 1...5 {
"The number is \(index)"
}
Will write (5 times) in the playground area. This will allow you to display it in the Assistant Editor (via the little circle on the far right edge).
However, if you were to ...
Deny access to one specific folder in .htaccess
...u just wish to disallow a listing of directory files you can use
Options -Indexes
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How to set radio button checked as default in radiogroup?
... or if you don't want to id your RadioButton and you know the index you can use ((RadioButton)radioGroup.getChildAt(INDEX)).setChecked(true);
– Ahmad Kayyali
Apr 29 '13 at 12:32
...
How to create a sequence of integers in C#?
...
Linq projection with the rarely used indexer overload (i):
(new int[11]).Select((o,i) => i)
I prefer this method for its flexibilty.
For example, if I want evens:
(new int[11]).Select((item,i) => i*2)
Or if I want 5 minute increments of an hour:
(n...
How to check if a value exists in an array in Ruby
...lement)
array.to_set.include?(element)
array.to_set.member?(element)
array.index(element) > 0
array.find_index(element) > 0
array.index { |each| each == element } > 0
array.find_index { |each| each == element } > 0
array.any? { |each| each == element }
array.find { |each| each == element...