大约有 48,000 项符合查询结果（耗时：0.0556秒） [XML]
How to extract text from a string using sed?
...
5 Answers
5
Active
...
MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
...henticating as 'bill'@'%' through a socket.
root@myhost:/home/mysql-5.5.16-linux2.6-x86_64# ./mysql -ubill -ppass --socket=/tmp/mysql-5.5.sock
Welcome to the MySQL monitor (...)
mysql> SELECT user, host FROM mysql.user;
+------+-----------+
| user | host |
+------...
How to check whether a pandas DataFrame is empty?
...
5 Answers
5
Active
...
std::vector performance regression when enabling C++11
...0 ./a.out
Performance counter stats for './a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 context-switches # 0.116 K/sec ( +- 5.69% )
0 CPU-migrations ...
How to count the number of true elements in a NumPy bool array
...
265
You have multiple options. Two options are the following.
numpy.sum(boolarr)
numpy.count_nonzer...
What is the >>>= operator in C?
...a[ !!0X.1P1 ] )
The literal 0xFULL is the same as 0xF (which is hex for 15); the ULL just specifies that it's an unsigned long long literal. In any case, as a boolean it's true, so 0xFULL ? '\0' : -1 evaluates to '\0', which is a character literal whose numerical value is simply 0.
Meanwhile, 0X...
Moving matplotlib legend outside of the axis makes it cutoff by the figure box
...s()
lgd = ax.legend(handles, labels, loc='upper center', bbox_to_anchor=(0.5,-0.1))
text = ax.text(-0.2,1.05, "Aribitrary text", transform=ax.transAxes)
ax.set_title("Trigonometry")
ax.grid('on')
fig.savefig('samplefigure', bbox_extra_artists=(lgd,text), bbox_inches='tight')
This produces:
[edi...
Understanding how recursive functions work
...
|
edited Sep 5 '14 at 0:49
answered Sep 5 '14 at 0:43
...
How to change the output color of echo in Linux
...
2435
You can use these ANSI escape codes:
Black 0;30 Dark Gray 1;30
Red 0;31...
Appropriate datatype for holding percent values?
...
5 Answers
5
Active
...