大约有 47,000 项符合查询结果（耗时：0.0668秒） [XML]
How to make a Python script run like a service or daemon in Linux
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answered Oct 21 '09 at 19:43
P ShvedP Shved
83k1414 gold badges113113 silver badges160160 bronze badges
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jquery sortable placeholder height problem
For some reason the placeholder for my sortable items is about 10px. All my sortable items have different heights. How can I change the height of each placeholder to match the item being moved?
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Position: absolute and parent height?
...idden;
}
.one {
position: relative;
float: left;
margin-top: 10px;
margin-left: 10px;
background: red;
width: 30px;
height: 30px;
}
.two {
position: relative;
float: right;
margin-top: 10px;
margin-right: 10px;
background: blue;
width: 30px;
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Move an item inside a list?
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answered Jul 3 '10 at 23:15
David ZDavid Z
111k2323 gold badges218218 silver badges256256 bronze badges
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Comma separator for numbers in R?
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answered Oct 1 '10 at 11:43
Joris MeysJoris Meys
95k2626 gold badges196196 silver badges254254 bronze badges
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In-Place Radix Sort
...ngth passes through the array.
void radixSort(string[] seqs, size_t base = 0) {
if(seqs.length == 0)
return;
size_t TPos = seqs.length, APos = 0;
size_t i = 0;
while(i < TPos) {
if(seqs[i][base] == 'A') {
swap(seqs[i], seqs[APos++]);
i++;...
How to pass a single object[] to a params object[]
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100
A simple typecast will ensure the compiler knows what you mean in this case.
Foo((object)new o...
Replace values in list using Python [duplicate]
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207
Build a new list with a list comprehension:
new_items = [x if x % 2 else None for x in items]
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Using {} in a case statement. Why?
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Macke
22k66 gold badges7272 silver badges104104 bronze badges
answered Nov 17 '13 at 13:25
RotemRotem
19.2k66 gold badge...
Pandas aggregate count distinct
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How about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id...