大约有 800 项符合查询结果（耗时：0.0213秒） [XML]
MySQL ON DUPLICATE KEY - last insert id?
...ttps://web.archive.org/web/20150329004325/https://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to that MySQL function.
From the MySQL documentation example:
If a ta...
How to show android checkbox at right side?
...
Please note that Android 5.0 SDK will show you a warning about RTL devices. To make it go away, just add android:drawableEnd in addition to android:drawableRight (with the same value).
– Quentin S.
Oct 18 '14 at...
Creating dataframe from a dictionary where entries have different lengths
...mylist ])
>>> list_df
0 1 2
0 1.0 2.0 3.0
1 4.0 5.0 NaN
2 6.0 NaN NaN
Another syntax for lists is:
>>> mylist = [ [1,2,3], [4,5], 6 ]
>>> list_df = pd.DataFrame({ i:pd.Series(value) for i, value in enumerate(mylist) })
>>> list_df
0 ...
How do I create a round cornered UILabel on the iPhone?
...yer * l1 = [lblName layer];
[l1 setMasksToBounds:YES];
[l1 setCornerRadius:5.0];
// You can even add a border
[l1 setBorderWidth:5.0];
[l1 setBorderColor:[[UIColor darkGrayColor] CGColor]];
Just replace lblName with your UILabel.
Note:- Don't forget to import <QuartzCore/QuartzCore.h>
...
Action bar navigation modes are deprecated in Android L
...
Now that the Android 5.0 docs are available, we have the official documentation for the Toolbar widget:
A standard toolbar for use within application content.
A Toolbar is a generalization of action bars for use within
application layo...
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
... not exceeed 65535 bytes.
As outlined here http://dev.mysql.com/doc/refman/5.0/en/charset-unicode-utf8.html, max 3 bytes for utf-8.
THIS IS A ROUGH ESTIMATION TABLE FOR QUICK DECISIONS!
So the worst case assumptions (3 bytes per utf-8 char) to best case (1 byte per utf-8 char)
Assuming the engli...
How to set space between listView Items in Android
...ndroid="http://schemas.android.com/apk/res/android"
android:insetLeft="5.0px"
android:insetRight="5.0px"
android:insetTop="8.0px"
android:insetBottom="8.0px">
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
&l...
Difference between List, List, List, List, and List
...List means it can include any Object. List was in the release before Java 5.0; Java 5.0 introduced List, for backward compatibility.
List list=new ArrayList();
list.add(anyObject);
List<?>:
? means unknown Object not any Object; the wildcard ? introduction is for solving the problem...
Creating a UICollectionView programmatically
...// Now setup the flowLayout required for drawing the cells
let space = 5.0 as CGFloat
// Set view cell size
flowLayout.itemSize = CGSizeMake(50, 50)
// Set left and right margins
flowLayout.minimumInteritemSpacing = space
// Set top and bottom margins
flowLayout.minimu...
Dashed line border around UIView
...gn using pattern image like below example.
[yourView.layer setBorderWidth:5.0];
[yourView.layer setBorderColor:[[UIColor colorWithPatternImage:[UIImage imageNamed:@"DotedImage.png"]] CGColor]];///just add image name and create image with dashed or doted drawing and add here
Here you've to add <...