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Using Excel OleDb to get sheet names IN SHEET ORDER
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answered Sep 26 '12 at 14:45
Jeremy BreeceJeremy Breece
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maxlength ignored for input type=“number” in Chrome
...ctual character length of the value, though -9999 to 9999 will cover all 0-4 digit numbers), or you can use a regular text input and enforce validation on the field with the new pattern attribute:
<input type="text" pattern="\d*" maxlength="4">
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手机当上位机：用二进制协议和设备收发数据 · App Inventor 2 中文网
...脑窗口同时打印「收到 A5 5A 01 01 01」和一行「回复 A5 5A 04 81 …」。
两边字节一致，说明拼包对了。窗口里打印「校验不对，丢弃」就回头检查拼接的内容。
实验二：拆包并解析回复
设备的回复和推送会源源...
Extract traceback info from an exception object
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edited Sep 28 '18 at 19:04
answered Jul 10 '12 at 14:08
se...
TCP: can two different sockets share a port?
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Remy LebeauRemy Lebeau
417k2626 gold badges335335 silver badges578578 bronze badges
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Arrays, heap and stack and value types
...s of memory (assuming a 32-bit word size). The field I in each case takes 4 bytes to store its value, the field S takes 4 bytes to store its reference, and the field L takes 8 bytes to store its value. So the memory for the value of both RefType and ValType looks like this:
0 ┌─────...
Get the cartesian product of a series of lists?
...hon 2.6.
import itertools
somelists = [
[1, 2, 3],
['a', 'b'],
[4, 5]
]
for element in itertools.product(*somelists):
print(element)
Which is the same as,
for element in itertools.product([1, 2, 3], ['a', 'b'], [4, 5]):
print(element)
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What is the formal difference in Scala between braces and parentheses, and when should they be used?
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Itchydon
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answered Dec 8 '10 at 11:55
Daniel C. SobralDaniel...
Create a string of variable length, filled with a repeated character
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PointyPointy
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How to do a scatter plot with empty circles in Python?
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Gary KerrGary Kerr
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