大约有 47,000 项符合查询结果（耗时：0.0535秒） [XML]
How do I kill background processes / jobs when my shell script exits?
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edited Dec 12 '08 at 16:33
answered Dec 11 '08 at 17:57
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How do I retrieve the number of columns in a Pandas data frame?
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edited Nov 30 '13 at 7:22
answered Nov 30 '13 at 7:11
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What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
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tinyint | 1 byte -128 to 127 0 to 255
smallint | 2 bytes -32768 to 32767 0 to 65535
mediumint | 3 bytes -8388608 to 8388607 0 to 16777215
int/integer | 4 bytes -2147483648 to 2147483647 ...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
I have a 60GB SciPy Array (Matrix) I must share between 5+ multiprocessing Process objects. I've seen numpy-sharedmem and read this discussion on the SciPy list. There seem to be two approaches-- numpy-sharedmem and using a multiprocessing.RawArray() and mapping NumPy dtype s to ctype s. ...
Creating java date object from year,month,day
...12 is interpreted as december + 1 month. Use
c.set(year, month - 1, day, 0, 0);
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How to convert ASCII code (0-255) to its corresponding character?
How can I convert, in Java, the ASCII code (which is an integer from [0, 255] range) to its corresponding ASCII character?
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Bash Script: count unique lines in file
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306
You can use the uniq command to get counts of sorted repeated lines:
sort ips.txt | uniq -c
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What is AssemblyInfo.cs used for?
...tab of the file properties you will see no name,
no description, version 0.0.0.0, etc.
The value associated with assembly:Guid is the ID that will identify
the assembly if it will be exposed as a COM object. So, if your
assembly isn't COM-exposed, you don't need this. It is randomly
gen...
How do you read CSS rule values with JavaScript?
...(className) {
var cssText = "";
var classes = document.styleSheets[0].rules || document.styleSheets[0].cssRules;
for (var x = 0; x < classes.length; x++) {
if (classes[x].selectorText == className) {
cssText += classes[x].cssText || classes[x].style.cssText...
Can someone explain this 'double negative' trick? [duplicate]
...ue.
The "falsey" values are:
false
NaN
undefined
null
"" (empty string)
0
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