大约有 36,000 项符合查询结果（耗时：0.0232秒） [XML]
Counting occurrences in Vim without marking the buffer changed
...
:!cat %| grep -c "pattern"
It's not exactly vim command, but it will give you what you need from vim.
You can map it to the command if you need to use it frequently.
...
How do I restrict a float value to only two places after the decimal point in C?
...ree different rounding rules you might want to choose: round down (ie, truncate after two decimal places), rounded to nearest, and round up. Usually, you want round to nearest.
As several others have pointed out, due to the quirks of floating point representation, these rounded values may not be e...
Breaking loop when “warnings()” appear in R
...onverted from warnings.
j <- function() {
for (i in 1:3) {
cat(i, "\n")
as.numeric(c("1", "NA"))
}}
# warn = 0 (default) -- warnings as warnings!
j()
# 1
# 2
# 3
# Warning messages:
# 1: NAs introduced by coercion
# 2: NAs introduced by coercion
# 3: NAs introduced by c...
How to convert jsonString to JSONObject in Java
...ry {
JSONObject jsonObject = new JSONObject("{\"phonetype\":\"N95\",\"cat\":\"WP\"}");
}catch (JSONException err){
Log.d("Error", err.toString());
}
share
|
improve this answer
|...
find: missing argument to -exec
...nd line, so it might be split up) with all filenames. See this example:
$ cat /tmp/echoargs
#!/bin/sh
echo $1 - $2 - $3
$ find /tmp/foo -exec /tmp/echoargs {} \;
/tmp/foo - -
/tmp/foo/one - -
/tmp/foo/two - -
$ find /tmp/foo -exec /tmp/echoargs {} +
/tmp/foo - /tmp/foo/one - /tmp/foo/two
Your com...
RSpec controller testing - blank response.body
...uestion), it occurred to me that there are different ways to skin the same cat. In other words, rather than checking for the body text, you might be able to check the content of the flash.
response.body.should =~ /Invalid email or password/
might be an equivalent check to:
flash[:alert].should...
Skip certain tables with mysqldump
... dump their structure, you can run mysqldump again fo those tables, and concatenate it onto the backup you just created
– carpii
Jun 25 '12 at 15:18
|
...
Why am I not getting a java.util.ConcurrentModificationException in this example?
...r's own remove or add methods, the iterator will throw a
ConcurrentModificationException.
This check is done in the next() method of the iterator (as you can see by the stacktrace). But we will reach the next() method only if hasNext() delivered true, which is what is called by the for each to c...
See line breaks and carriage returns in editor
... file, for running a list of commands.
Edit your .vimrc file, like this :
cat >> ~/.vimrc <<EOF
set ffs=unix
set encoding=utf-8
set fileencoding=utf-8
set listchars=eol:¶
set list
EOF
When you're executing vim, the commands into .vimrc are executed, and you can see this example :
My...
curl: (60) SSL certificate problem: unable to get local issuer certificate
...
Relating to 'SSL certificate problem: unable to get local issuer certificate' error. It is important to note that this applies to the system sending the CURL request, and NOT the server receiving the request.
Download the latest cacert.pem from ht...