大约有 47,000 项符合查询结果（耗时：0.0354秒） [XML]
How to change the CHARACTER SET (and COLLATION) throughout a database?
...n a table (Mysql). He set it up with Latin collation, when it should be UTF8, and now I have issues. Every record with Chinese and Japan character turn to ??? character.
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Android. WebView and loadData
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myWebView.loadData(myHtmlString, "text/html; charset=UTF-8", null);
This works flawlessly, especially on Android 4.0, which apparently ignores character encoding inside HTML.
Tested on 2.3 and 4.0.3.
In fact, I have no idea about what other values besides "base64" does the last...
Finding all possible combinations of numbers to reach a given sum
..., target, partial + [n])
if __name__ == "__main__":
subset_sum([3,9,8,4,5,7,10],15)
#Outputs:
#sum([3, 8, 4])=15
#sum([3, 5, 7])=15
#sum([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lecture...
Splitting a list into N parts of approximately equal length
...Testing:
>>> chunkIt(range(10), 3)
[[0, 1, 2], [3, 4, 5], [6, 7, 8, 9]]
>>> chunkIt(range(11), 3)
[[0, 1, 2], [3, 4, 5, 6], [7, 8, 9, 10]]
>>> chunkIt(range(12), 3)
[[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]]
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How do I convert a Java 8 IntStream to a List?
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Basil Bourque
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answered May 15 '14 at 9:48
Ian RobertsIa...
GridLayout and Row/Column Span Woe
...android:columnCount="9"
android:orientation="horizontal"
android:rowCount="8" >
<Button
android:layout_columnSpan="2"
android:layout_gravity="fill"
android:layout_rowSpan="2"
android:text="1" />
<Button
android:layout_columnSpan="2"
android:layout_gravity="fill_...
Select first 4 rows of a data.frame in R
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Eduardo LeoniEduardo Leoni
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Selecting the first “n” items with jQuery
... thefoxrocks
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answered Dec 8 '09 at 8:42
istrubleistruble
11.6k22 gold bad...
Re-ordering columns in pandas dataframe based on column name [duplicate]
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edited Dec 18 '18 at 22:57
gcamargo
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Determine the data types of a data frame's columns
...r(my.data)
'data.frame': 5 obs. of 4 variables:
$ y : num 1.03 1.599 -0.818 0.872 -2.682
$ x1: int 1 2 3 4 5
$ x2: logi TRUE TRUE FALSE FALSE FALSE
$ X3: Factor w/ 5 levels "a","b","c","d",..: 1 2 3 4 5
@Gavin Simpson's approach is also streamlined, but provides slightly different information...