大约有 21,900 项符合查询结果（耗时：0.0531秒） [XML]
Pickle or json?
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dump 20 Pickle 0.022 2857580
load 20 Pickle 0.394 -
dump 50 JSON 0.079 7422550
load 50 JSON 9.485 -
dump 50 Pickle 0.055 7143950
load 50 Pickle 2.518 -
dump 100 JSON 0.165 14845100
load 100 JSON 37.730 -
dump 100 Pickle 0.107 142879...
Get difference between two lists
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edited May 19 '17 at 11:50
cvipul
11011 silver badge88 bronze badges
answered Aug 11 '10 at 19:40
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Is there a Python Library that contains a list of all the ascii characters?
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... to be the best compromise of speed and memory consumption. I started with 500 and experimented with larger. I found 5000 to be 2.5x faster, on average, than 500. Inserting the 6 million rows takes about 30 seconds with a batch size of 5,000 and about 80 seconds with batch size of 500.
10,000 was ...
Remove blue border from css custom-styled button in Chrome
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Shouldn't this actually be outline: none; or doesn't that matter?
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How do I create a parameterized SQL query? Why Should I?
...SqlCommand(sql, cn)
cmd.Parameters.Add("@Baz", SqlDbType.VarChar, 50).Value = Baz
Return cmd.ExecuteScalar().ToString()
End Using
End Function
Stored procedures are sometimes credited with preventing SQL injection. However, most of the time you still have to call them using q...