大约有 40,000 项符合查询结果（耗时：0.0292秒） [XML]
Check existence of input argument in a Bash shell script
... [ -z "$1" ]
then
echo "No argument supplied"
fi
The -z switch will test if the expansion of "$1" is a null string or not. If it is a null string then the body is executed.
share
|
improve th...
JavaScript function to add X months to a date
... if (date.getUTCMonth() !== m) date.setUTCDate(0)
}
return date
}
test:
> d = new Date('2016-01-31T00:00:00Z');
Sat Jan 30 2016 18:00:00 GMT-0600 (CST)
> d = addMonthsUTC(d, 1);
Sun Feb 28 2016 18:00:00 GMT-0600 (CST)
> d = addMonthsUTC(d, 1);
Mon Mar 28 2016 18:00:00 GMT-0600 (CS...
Specify width in *characters*
...5 7 9 1</div>
<script>
$('body').append('<div id="testwidth"><span>&nbsp;</span></div>');
var w = $('#testwidth span').width();
$('#testwidth').remove();
$('div').css('width', (w * 10 + 1) + 'px');
</script>
</...
Create new user in MySQL and give it full access to one database
...e a new user in MySQL and give it full access only to one database, say dbTest , that I create with a command like create database dbTest; . What would be the MySQL commands to do that?
...
Any way to Invoke a private method?
...ccepted are obj, methodName and the parameters. For example
public class Test {
private String concatString(String a, String b) {
return (a+b);
}
}
Method concatString can be invoked as
Test t = new Test();
String str = (String) genericInvokeMethod(t, "concatString", "Hello", "Mr.x");
...
Local (?) variable referenced before assignment [duplicate]
...
In order for you to modify test1 while inside a function you will need to do define test1 as a global variable, for example:
test1 = 0
def testFunc():
global test1
test1 += 1
testFunc()
However, if you only need to read the global variable ...
C++ protobuf使用入门实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
...台。使用步骤如下：
1、定义一个.proto数据结构文件，如test.proto：
syntax = "proto3";
package google.protobuf;
option csharp_namespace = "Google.Protobuf.WellKnownTypes";
option cc_enable_arenas = true;
option go_package = "google.golang.org/protobuf/types/known/test...
How to serve an image using nodejs
...mples are also on GitHub: https://github.com/rsp/node-static-http-servers
Test results are available on Travis: https://travis-ci.org/rsp/node-static-http-servers
Introduction
After over 5 years since this question was asked there is only one correct answer by generalhenry but even though that an...
The point of test %eax %eax [duplicate]
...ly, it sets the zero flag if the difference is zero (operands are equal).
TEST sets the zero flag, ZF, when the result of the AND operation is zero. If two operands are equal, their bitwise AND is zero when both are zero. TEST also sets the sign flag, SF, when the most significant bit is set in the...
Set type for function parameters?
...main idea, in a simplistic, but operative way :
/*
* checkType() : Test the type of the value. If succeds return true,
* if fails, throw an Error
*/
function checkType(value,type, i){
// perform the appropiate test to the passed
// value according to the provided type
switch(...