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OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...zypper install bcc-devel
#zypper install bcc-devel-0.22.0-lp151.127.1.x86_64 #安装失败的话，可以尝试
3、安装bpftrace（参考：INSTALL.md）：
OCICLI https://software.opensuse.org/ymp/home:pavlix:Kernel/openSUSE_Leap_15.1/bpftrace.ymp
4、验证：
bpftrace
USAGE:
...
App Inventor 2 低功耗蓝牙 BlueToothLE 拓展之：RequestMTU是否有上限？ -...
RequestMTU
没反应,是不是因为这个值1024太大了
1024没触发,64触发了
MTU设64不报错,设100报错 128报错.256不报错.
----
连上后，调用，没有触发回调？
待调查研究这个函数是否有上限。
为什么会提示AppInventor2.exe 不是有效的 Win32 - App Inventor 2 离线版 ...
本帖最后由 lmn2005 于 2025-04-15 18:35 编辑
电脑系统为64位win7，安装AppInventor2后运行，提示C:\AppInventor2\AppInventor2.exe 不是有效的 Win32 应用程序 这是为什么？
https://aka.ms/vs/16/release/vc_redist.x64.exe
装一个运行环境试试，如果还...
How to do case insensitive string comparison?
...tivity: 'accent' } tells localeCompare() to treat two variants of the same base letter as the same unless they have different accents (as in the third example) above.
Alternatively, you can use { sensitivity: 'base' }, which treats two characters as equivalent as long as their base character is the...
Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...tically unpacks the files and duplicates the profile from a pre-configured base directory.
By default:
The Chrome binaries are placed in subfolders of C:\Chrome\.
The User profiles are created in C:\Chrome\User Data\.
The user profiles will be duplicated from the directory as specified in the sFo...
How does this code generate the map of India?
... while (a != 0) {
a = bits[b];
b++;
while (a > 64) {
a--;
if (++c == 'Z') {
c /= 9;
putchar(c);
} else {
putchar(33 ^ (b & 0x01));
}
}
}
return 0;
}
The s...
How to convert an array of strings to an array of floats in numpy?
...port numpy as np
a = ["1.1", "2.2", "3.2"]
b = np.asarray(a, dtype=np.float64, order='C')
For Python 2*:
print a, type(a), type(a[0])
print b, type(b), type(b[0])
resulting in:
['1.1', '2.2', '3.2'] <type 'list'> <type 'str'>
[1.1 2.2 3.2] <type 'numpy.ndarray'> <type 'num...
Applying a git post-commit hook to all current and future repos
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
What does “dereferencing” a pointer mean?
... (C++ only) direct or indirect member variables of static objects or their bases, or undergo zero initialisation (e.g. new T(); and new T(x, y, z); perform zero-initialisation on T's members including pointers, whereas new T; does not).
Further, when you assign 0, NULL and nullptr to a pointer the ...
Is there “0b” or something similar to represent a binary number in Javascript
...gned a number that looks like it's in binary, but is actually being parsed base 10. The parseInt function expects a string as the first arg, so it turns it into "1111" (base 10 representation), then re-parses it as if it were base 2.
– Ted Hopp
Sep 12 '12 at 21...