大约有 3,100 项符合查询结果（耗时：0.0201秒） [XML]
What difference is there between WebClient and HTTPWebRequest classes in .NET?
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John SheehanJohn Sheehan
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How to import other Python files?
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72
To import a specific Python file at 'runtime' with a known name:
import os
import sys
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s...
What is the maximum possible length of a .NET string?
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72
Based on my highly scientific and accurate experiment, it tops out on my machine well before 1,...
Will the Garbage Collector call IDisposable.Dispose for me?
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XianXian
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How to ignore files/directories in TFS for avoiding them to go to central source repository?
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72
It does seem a little cumbersome to ignore files (and folders) in Team Foundation Server. I've ...
Why am I seeing “TypeError: string indices must be integers”?
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John MachinJohn Machin
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Does a valid XML file require an XML declaration?
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HoylenHoylen
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How can I set the max-width of a table cell using percentages?
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72
According to the definition of max-width in the CSS 2.1 spec, “the effect of 'min-width' and ...
Should a function have only one return statement?
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172
This is known as a "guard statement" is Fowler's Refactoring.
– Lars Westergren
Sep 26 '08 at 10:22
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Naming returned columns in Pandas aggregate function? [duplicate]
... height age Seed
# 1 4.51 3 301
# 15 10.89 5 301
# 29 28.72 10 301
# 43 41.74 15 301
# 57 52.70 20 301
df = data.groupby('Seed').agg(
{'age':['sum'],
'height':['mean', 'std']})
print(df.head())
# age height
# sum std me...