大约有 475 项符合查询结果（耗时：0.0073秒） [XML]
How do I create a constant in Python?
...ts access via __dict__:
class CONST(object):
__slots__ = ()
FOO = 1234
CONST = CONST()
# ----------
print(CONST.FOO) # 1234
CONST.FOO = 4321 # AttributeError: 'CONST' object attribute 'FOO' is read-only
CONST.__dict__['FOO'] = 4321 # AttributeError: 'CONST' object has n...
How to close this ssh tunnel? [closed]
... with &. That will give you the exact pid you need to kill:
ssh -N -L1234:other:1234 server &
pid=$!
echo "waiting a few seconds to establish tunnel..."
sleep 5
... do yer stuff... launch mysql workbench whatever
echo "killing ssh tunnel $pid"
kill $pid
Or better yet, just create this as...
Find the index of a dict within a list, by matching the dict's value
...ten in the comments; see also tokland's answer):
>>> L = [{'id':'1234','name':'Jason'},
... {'id':'2345','name':'Tom'},
... {'id':'3456','name':'Art'}]
>>> [i for i,_ in enumerate(L) if _['name'] == 'Tom'][0]
1
...
Convert php array to Javascript
... json_encode function
<?php $phpArray = array(
0 => 001-1234567,
1 => 1234567,
2 => 12345678,
3 => 12345678,
4 => 12345678,
5 => 'AP1W3242',
6 => 'AP7X1234',
7 => 'AS1234',
8 =&...
Remove insignificant trailing zeros from a number?
...ra and gary's answers:
r=(+n).toFixed(4).replace(/\.0+$/,'')
Results:
1234870.98762341: "1234870.9876"
1230009100: "1230009100"
0.0012234: "0.0012"
0.1200234: "0.12"
0.000001231: "0"
0.10001: "0.1000"
"asdf": "NaN" (so no runtime error)
The somewhat problematic case is 0.10001. I ended up usi...
What's the fastest way to convert String to Number in JavaScript?
... undefined,
"not a number",
"123.45",
"1234 error",
"2147483648",
"4999999999"
];
for (var i = 0; i < values.length; i++){
var x = values[i];
console.log(x);
console.log(" Number(x) = " + Number(x));
console.log("...
Best way to use multiple SSH private keys on one client
...g the repository.
Suppose, your company's GitHub account's username is abc1234.
And suppose your personal GitHub account's username is jack1234
And, suppose you have created two RSA keys, namely id_rsa_company and id_rsa_personal. So, your configuration file will look like below:
# Company accoun...
What's the main difference between int.Parse() and Convert.ToInt32
... string strWrongFrmt = "5.87";
string strAboveRange = "98765432123456";
int res;
try
{
// int.Parse() - TEST
res = int.Parse(strInt); // res = 24532
res = int.Parse(strNull); // System.ArgumentNullException
res = int...
Does Ruby regular expression have a not match operator like “!~” in Perl?
...
AFAIK (?!xxx) is supported:
2.1.5 :021 > 'abc1234' =~ /^abc/
=> 0
2.1.5 :022 > 'def1234' =~ /^abc/
=> nil
2.1.5 :023 > 'abc1234' =~ /^(?!abc)/
=> nil
2.1.5 :024 > 'def1234' =~ /^(?!abc)/
=> 0
...
How to change XAMPP apache server port?
...:80
Listen 80
Change the port no to a port no. of your choice (e.g. port 1234) like below
#Listen 12.34.56.78:1234
Listen 1234
3) Next, in the same httpd.conf file look for “ServerName localhost:” Set it to the new port no.
ServerName localhost:1234
4) Save and close the httpd.conf file....