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Git submodule head 'reference is not a tree' error
...roject.
Example:
$ git submodule update
fatal: reference is not a tree: e47c0a16d5909d8cb3db47c81896b8b885ae1556
Unable to checkout 'e47c0a16d5909d8cb3db47c81896b8b885ae1556' in submodule path 'sub'
Oops, someone made a super-project commit that refers to an unpublished commit in the submodule s...
Function pointers, Closures, and Lambda
... Brackett
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What's the meaning of interface{}?
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194
You can refer to the article "How to use interfaces in Go" (based on "Russ Cox’s description o...
Possible to make labels appear when hovering over a point in matplotlib?
...DEFGHIJKLMNO"))
c = np.random.randint(1,5,size=15)
norm = plt.Normalize(1,4)
cmap = plt.cm.RdYlGn
fig,ax = plt.subplots()
sc = plt.scatter(x,y,c=c, s=100, cmap=cmap, norm=norm)
annot = ax.annotate("", xy=(0,0), xytext=(20,20),textcoords="offset points",
bbox=dict(boxstyle="rou...
Extracting .jar file with command line
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acdcjunior
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answered Dec 10 '11 at 1:13
AusCBlokeAusCBloke
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炒股是世界难题！历史上那些名人炒股水平 - 轻松一刻 - 清泛网 - 专注C/C++...
...“恒泰号”，他还是这个牌号下的股东。当时他以极小的4股“恒泰号”进入股市。通过炒作一年内使股价由30元涨至120元，收益翻了四倍；第二年又涨到200元，比前一年又将近翻番，雪球越滚越大。第三年“泡沫”破灭，上海证...
汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...字节） ；
“w”表示 word（2 个字节） ；“l”表示 long（4 个字节） 。
INTEL 中处理内存操作数也有类似的语法如：BYTE PTR、WORD PTR、DWORD PTR。
INTEL：mov al, bl AT&T：movb %bl,%al
INTEL：mov ax,bx ...
What are bitwise operators?
... For example, reading an integer from four bytes:
int val = (A << 24) | (B << 16) | (C << 8) | D;
Assuming that A is the most-significant byte and D the least. It would end up as:
A = 01000000
B = 00000101
C = 00101011
D = 11100011
val = 01000000 00000101 00101011 11100011
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How do I restrict a float value to only two places after the decimal point in C?
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411
If you just want to round the number for output purposes, then the "%.2f" format string is ind...
开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明 - 开源 & Github - 清泛网 ...
....3 添加普通用户
用户管理 -- 添加用户
查收邮件
1.4 添加用户组
2.0.0版本的jumpserver授权主机或者sudo是以组的形式组织的，所以要建立用户组
用户管理 -- 添加小组 (有人问为何不是添加用户组？ 因为四个字比较好看)
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