大约有 7,400 项符合查询结果（耗时：0.0169秒） [XML]
Create code first, many to many, with additional fields in association table
...
I don't know I but this works better with MySql. Without the builder, Mysql throw me an error when I tried the migration.
– Rodrigo Prieto
Jul 4 '17 at 14:28
...
How to use double or single brackets, parentheses, curly braces
...ojects, I can specify file paths as script input/output. if I specify $SRC_ROOT/myFile.txt or ${SRC_ROOT}/myFile.txt (SRC_ROOT var is exported by the build system) - doesn't work. only $(SRC_ROOT)/myFile.txt works. What could be the reason? clearly var name isn't a command?
– M...
How to use NSJSONSerialization
...
Your root json object is not a dictionary but an array:
[{"id": "1", "name":"Aaa"}, {"id": "2", "name":"Bbb"}]
This might give you a clear picture of how to handle it:
NSError *e = nil;
NSArray *jsonArray = [NSJSONSerializatio...
Search of table names
...
This is MySQL syntax on a question tagged sql-server
– Mike Guthrie
Sep 8 '17 at 13:34
add a comment
...
How to disable back swipe gesture in UINavigationController on iOS 7
...etting the delegate to nil leads to hanging issues when you go back to the root view controller and make a swipe gesture before navigating elsewhere.
The following example assumes iOS 7:
{
id savedGestureRecognizerDelegate;
}
- (void)viewWillAppear:(BOOL)animated
{
savedGestureRecognizer...
How do I remove/delete a folder that is not empty?
...ample, if top == '/', it
# could delete all your disk files.
import os
for root, dirs, files in os.walk(top, topdown=False):
for name in files:
os.remove(os.path.join(root, name))
for name in dirs:
os.rmdir(os.path.join(root, name))
...
Choosing a file in Python with simple Dialog
...t askopenfilename
Tk().withdraw() # we don't want a full GUI, so keep the root window from appearing
filename = askopenfilename() # show an "Open" dialog box and return the path to the selected file
print(filename)
Done!
s...
Recursively list files in Java
...ic class Filewalker {
public void walk( String path ) {
File root = new File( path );
File[] list = root.listFiles();
if (list == null) return;
for ( File f : list ) {
if ( f.isDirectory() ) {
walk( f.getAbsolutePath() );
...
.gitignore all the .DS_Store files in every folder and subfolder
...he .gitignore file, but it seems that it is only ignoring .DS_Store in the root directory, not in every folder and subfolder.
...
Are multiple `.gitignore`s frowned on?
...s, it seems it would be simplest to just have one .gitignore file at the root of the repo than various ones throughout. Is there a standard best practice on this or some analysis online of when one approach is better than the other?
...