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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...感觉的phase_1，最主要不知道从何入手。虽然phase_1也不过10+行指令，但最初我的出发点错了：完全依靠人工去读代码而不使用更便捷的gdb去调试和查看内存和寄存器的情况。
比方说，困扰了我好几天之久的strings_not_equal函数。现...
How to get the seconds since epoch from the time + date output of gmtime()?
...calendar.timegm().
>>> calendar.timegm(time.gmtime())
1293581619.0
You can turn your string into a time tuple with time.strptime(), which returns a time tuple that you can pass to calendar.timegm():
>>> import calendar
>>> import time
>>> calendar.timegm(time....
How to set Sqlite3 to be case insensitive when string comparing?
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10 Answers
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Scrolling a flexbox with overflowing content
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answered Feb 4 '14 at 0:59
Joseph SilberJoseph Silber
184k4747 gold badges324324 silver badges265265 bronze badges
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Numpy - add row to array
...pare its row to a number: i < 3?
EDIT after OP's comment:
A = array([[0, 1, 2], [0, 2, 0]])
X = array([[0, 1, 2], [1, 2, 0], [2, 1, 2], [3, 2, 0]])
add to A all rows from X where the first element < 3:
import numpy as np
A = np.vstack((A, X[X[:,0] < 3]))
# returns:
array([[0, 1, 2],
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How to get the first and last date of the current year?
Using SQL Server 2000, how can I get the first and last date of the current year?
18 Answers
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UIRefreshControl - beginRefreshing not working when UITableViewController is inside UINavigationCont
...y, by changing contentoffset
[self.tableView setContentOffset:CGPointMake(0, -self.refreshControl.frame.size.height) animated:YES];
I would guess the reason for this is that it could be undesirable to scroll to the refresh control when user is in the middle/bottom of the table view?
Swift 2.2 ve...
How to use hex color values
...f, green ff and blue ff. You can write hexadecimal notation in Swift using 0x prefix, e.g 0xFF
To simplify the conversion, let's create an initializer that takes integer (0 - 255) values:
extension UIColor {
convenience init(red: Int, green: Int, blue: Int) {
assert(red >= 0 &&...
What is Weak Head Normal Form?
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404
I'll try to give an explanation in simple terms. As others have pointed out, head normal form d...
Changing iframe src with Javascript
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answered Sep 16 '10 at 19:43
PekkaPekka
408k128128 gold badges907907 silver badges10481048 bronze badges
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