大约有 43,200 项符合查询结果(耗时:0.0512秒) [XML]
How to detect if a specific file exists in Vimscript?
...
138
With a bit of searching in vim man I've found this, which looks much better that the original:...
TCP 的那些事儿(下) - 更多技术 - 清泛网 - 专注C/C++及内核技术
...端发包时记下t0,然后接收端再把这个ack回来时再记一个t1,于是RTT = t1 – t0。没那么简单,这只是一个采样,不能代表普遍情况。
经典算法
RFC793 中定义的经典算法是这样的:
1)首先,先采样RTT,记下最近好几次的RTT...
Selecting the last value of a column
...xRows();
var values = SpreadsheetApp.getActiveSheet().getRange(column + "1:" + column + lastRow).getValues();
for (; values[lastRow - 1] == "" && lastRow > 0; lastRow--) {}
return values[lastRow - 1];
}
Usage:
=lastValue("G")
EDIT:
In response to the comment asking for the fu...
Why is it OK to return a 'vector' from a function?
...
answered Mar 26 '14 at 8:22
πάντα ῥεῖπάντα ῥεῖ
81k1212 gold badges8888 silver badges160160 bronze badges
...
Extracting just Month and Year separately from Pandas Datetime column
...
11 Answers
11
Active
...
Any open source alternatives to balsamiq mockup [closed]
...
|
edited May 25 '13 at 1:29
Gringo Suave
23.3k55 gold badges7676 silver badges6767 bronze badges
...
Missing styles. Is the correct theme chosen for this layout?
...
21 Answers
21
Active
...
What's the idiomatic syntax for prepending to a short python list?
...
819
The s.insert(0, x) form is the most common.
Whenever you see it though, it may be time to cons...
Cannot pass null argument when using type hinting
...
PHP 7.1 or newer (released 2nd December 2016)
You can explicitly declare a variable to be null with this syntax
function foo(?Type $t) {
}
this will result in
$this->foo(new Type()); // ok
$this->foo(null); // ok
$this-&...
In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
...
319
@NotNull: The CharSequence, Collection, Map or Array object is not null, but can be empty.
@Not...
