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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...
...两个字符串，然后比较它们是否相等吗？
可以看到0x8048b22和0x8048b27指令中分别放入了两个字符串，一个在地址0x8049678中，另一个在0x8(%ebp)中。而0x8(%ebp)是函数phase_1的参数，所以依此可以判断0x8(%ebp)的内存地址中的值是我们输入...
How to delete duplicate rows in SQL Server?
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23 Answers
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Passing parameters to a Bash function
...and...
}
To call a function with arguments:
function_name "$arg1" "$arg2"
The function refers to passed arguments by their position (not by name), that is $1, $2, and so forth. $0 is the name of the script itself.
Example:
function_name () {
echo "Parameter #1 is $1"
}
Also, you need to...
Changing Vim indentation behavior by file type
...the file type? For instance, if I open a Python file it should indent with 2 spaces, but if I open a Powershell script it should use 4 spaces.
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How do I exchange keys with values in a dictionary?
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Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
share
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Maximum and Minimum values for ints
... the maximum value representable by an unsigned word will be sys.maxsize * 2 + 1, and the number of bits in a word will be math.log2(sys.maxsize * 2 + 2). See this answer for more information.
Python 2
In Python 2, the maximum value for plain int values is available as sys.maxint:
>>> sy...
Apache Prefork vs Worker MPM
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120
Prefork and worker are two type of MPM apache provides. Both have their merits and demerits.
B...
What's the difference between lapply and do.call?
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127
There is a function called Map that may be similar to map in other languages:
lapply returns ...
Is “double hashing” a password less secure than just hashing it once?
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270
Hashing a password once is insecure
No, multiple hashes are not less secure; they are an esse...
Redirect all output to file [duplicate]
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1213
That part is written to stderr, use 2> to redirect it. For example:
foo > stdout.txt 2&...