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Assignment inside lambda expression in Python
...was shown :)
– jno
Jan 31 '13 at 16:05
...
Iterate a list as pair (current, next) in Python
... + 1]
– lifebalance
Mar 25 '15 at 5:05
2
This should really be the answer, it doesn't rely on any...
How do I measure separate CPU core usage for a process?
...${pids[@]}"; do
if [ ! -e /proc/$pid ]; then
echo "Error: pid $pid doesn't exist"
exit 1
fi
done
while [ true ]; do
echo -e "\033[H\033[J"
for pid in "${pids[@]}"; do
ps -p $pid -L -o pid,tid,psr,pcpu,comm=
done...
C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ct TestStuct
{
}
int size = sizeof(new TestStuct());
编译后，提示：
错误 1 “ConsoleApplication3.TestStuct”没有预定义的大小，因此 sizeof 只能在不安全的上下文中使用(请考虑使用 System.Runtime.InteropServices.Marshal.SizeOf)
修改为Marshal.SizeOf...
How to log cron jobs?
... in
/var/log/syslog, as already mentioned by @Matthew Lock.
The logging of errors AFTER the program tried to execute, which can be sent to
an email or to a file, as mentioned by @Spliffster. I prefer logging
to a file, because with email THEN you have a NEW source of
problems, and its checking if em...
How to create an infinite loop in Windows batch file?
...s)
rem ** can be stopped with exit
rem ** can be stopped with a syntax error
call :stop
)
:stop
call :__stop 2>nul
:__stop
() creates a syntax error, quits the batch
This could be useful if you need a really infinite loop, as it is much faster than a goto :loop version because a for-loo...
Initialise a list to a specific length in Python [duplicate]
...|
edited Jan 10 '19 at 10:05
xoxox
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answered May 7 '...
Are static class variables possible in Python?
... the value of the class attribute using x instance
assert x.i == Test.i # ERROR
assert Test.i == 3 # Test.i was not affected
assert x.i == 12 # x.i is a different object than Test.i
This is because the line x.i = 12 has added a new instance attribute i to x instead of changing the value o...
`elif` in list comprehension conditionals
... do this.
– dTanMan
Nov 7 '19 at 16:05
add a comment
|
...
What is the scope of variables in JavaScript?
...perties on the global object.
Examples
The following will throw a ReferenceError because the namesx, y, and z have no meaning outside of the function f.
function f() {
var x = 1
let y = 1
const z = 1
}
console.log(typeof x) // undefined (because var has function scope!)
console.log(t...