大约有 47,000 项符合查询结果（耗时：0.1300秒） [XML]
Sass .scss: Nesting and multiple classes?
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edited Feb 29 '16 at 14:21
answered Jun 18 '12 at 14:18
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Undock Chrome Developer Tools
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372
Click the vertical ellipsis button ( ⋮ ) then choose the desired docking option. (the docking ...
Git merge left HEAD marks in my files
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered May 18 '12 at 17:44
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Stretch child div height to fill parent that has dynamic height
...ing display: inline-block or float: left.
div#container {
padding: 20px;
background: #F1F1F1
}
.content {
width: 150px;
background: #ddd;
padding: 10px;
display: table-cell;
vertical-align: top;
}
.text {
font-family: 12px Tahoma, Geneva, sans-serif;
color: #555;
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Python and pip, list all versions of a package that's available?
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(update: As of March 2020, many people have reported that yolk, installed via pip install yolk3k, only returns latest version. Chris's answer seems to have the most upvotes and worked for me)
The script at pastebin does work. However it's not v...
How does Junit @Rule work?
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edited Jul 25 '18 at 5:06
MasterJoe
1,06233 gold badges1313 silver badges3838 bronze badges
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What is ApplicationException for in .NET?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Apr 16 '11 at 10:36
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How to update column with null value
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228
No special syntax:
CREATE TABLE your_table (some_id int, your_column varchar(100));
INSERT I...
How can I create a unique constraint on my column (SQL Server 2008 R2)?
I have SQL Server 2008 R2 and I want to set a unique column.
4 Answers
4
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Apply pandas function to column to create multiple new columns?
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Building off of user1827356 's answer, you can do the assignment in one pass using df.merge:
df.merge(df.textcol.apply(lambda s: pd.Series({'feature1':s+1, 'feature2':s-1})),
left_index=True, right_index=True)
textcol feature1 feature...