如何使用python获得本地网卡的正确MAC /以太网ID?Google/stackoverflow上的大部分文章都建议解析ipconfig/all(windows)和ifconfig(Linux)的结果.在Windows(2x/xp/7)'ipconfig/all'工作正常,但这是一个故障安全方法吗?我是linux的新手,我不知道'ifconfig'是否是获取MAC /以太网ID的标准方法.
我必须在python应用程序中实现一个基于本地MAC /以太网ID的许可证检查方法.
当您安装了VirtualBox或虚拟化应用程序(例如VirtualBox)时,会出现这种情况.在这种情况下,您将获得多个MAC /以太网ID.如果我必须使用解析方法,这不会是一个问题,但我不确定.
干杯
PRASHANT
如果我想调用这样的方法:
List f(List l){
l.add(new Object());
return l;
}
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一切都很好,除非我调用该方法,它实际上修改了它的参数,反正在那周围?
// suppose l is instantiated at this point
log.info(l.count());// prints 0
f(l);
log.info(l.count());// prints 1
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无论如何在java中声明f以保持l不变?
我知道我可以在l上执行深度克隆并传递它,但是在l非常大的情况下,此操作很昂贵.
我在互联网系列管中找到了这个有用的代码:
x=[1,2,3,4]
y=[1,2,3,4]
combos=[(`i`+`n`) for i in x for n in y]
combos
['11','12','13','14','21','22','23','24','31','32','33','34','41','42','43','44']
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我想要做的是如下:
combinations={(i: `n`+`d`) for i in range(16) for n in x for d in y}
combinations
{1: '11', 2: '12', 3: '13', 4: '14', 5: '21', 6: '22'...etc}
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但显然这不起作用.可以这样做吗?如果是这样,怎么样?
Since Wasm is written in non-human-readable form, does this make it nigh-on impossible for a hacker to look at the Wasm files of a site and figure out what's what?
I know it's never considered best practice to keep sensitive data on the client-side, but Wasm seems to be a bit of a game-changer when it comes to code obscurity (unless I've missed something somewhere).
Everything looks like this:
I don't see how any information can be gleaned from that. …
int check_row;
for (n=0; n<9; n++) {
used_numbers[n] = n+1;
}
for (row=0; row<3; row++) {
for (check_row=0; check_row<3; check_row++) {
used_numbers[(sudoku[row][check_row]-1)] = 0;
}
...
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int sudoku [9] [9]声明为全局变量,used_numbers [9]声明为int.在数独矩阵中,行为0到2,列为0到2,每行中有数字> 0
此时我得到"浮点异常",如何解决这个问题?对不起,我的英语不好...
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