variables

问题 I'm working on a C++ application which is keeping some user secret keys in the RAM. This secret keys are highly sensitive & I must minimize risk of any kind of attack against them. I'm using a character array to store these keys, I've read some contents about storing variables in CPU registers or even CPU cache (i.e using C++ register keyword), but seems there is not a guaranteed way to force application to store some of it's variables outside of RAM (I mean in CPU registers or cache). Can

问题 I'm working on a C++ application which is keeping some user secret keys in the RAM. This secret keys are highly sensitive & I must minimize risk of any kind of attack against them. I'm using a character array to store these keys, I've read some contents about storing variables in CPU registers or even CPU cache (i.e using C++ register keyword), but seems there is not a guaranteed way to force application to store some of it's variables outside of RAM (I mean in CPU registers or cache). Can

问题 The web server works (python flask) but when I go to the website, where the value of animal should be (dog) it shows the variable name animal. (There is more to the code but this is the most simplistic version which is the same concept. Let's say I have these lines of code in my python script running python flask. animal = dog return render_template('index.html', value=animal) and in my HTML <h3>I like the animal: {{ value }}<h3> but rather than displaying 'dog' it displays the variable name

问题 I am using Eclipse PDT and I want to annotate a local variable using Phpdoc. All I see is that I can annotate the variables/properties of a class using @var or even @property , but how is this possible for a local variable? How can I do something like this? function foo(){ /** @var Stock $a */ $a->save(); } 回答1: The Phpdoc standard does not cover these annotations (it only cover class properties with the @var tag); however, it is perfectly possible in Eclipse (e.g. PDT): /* @var $variable

问题 I am using Eclipse PDT and I want to annotate a local variable using Phpdoc. All I see is that I can annotate the variables/properties of a class using @var or even @property , but how is this possible for a local variable? How can I do something like this? function foo(){ /** @var Stock $a */ $a->save(); } 回答1: The Phpdoc standard does not cover these annotations (it only cover class properties with the @var tag); however, it is perfectly possible in Eclipse (e.g. PDT): /* @var $variable

问题 How can I increment a string value? For example: string RECONCILIATION_COUNT; if (thing happens) { RECONCILIATION_COUNT++; } This is normally wont work since it is not possible to increment a string variable in the same way used for int values. RECONCILIATION_COUNT is always a number from 0-5. I chose to declare it as a string since I am getting this value from database and i am not finding a way how to get an int value from sql. RECONCILIATION_COUNT = Rows["RECONCILIATION_COUNT"].toString();

问题 I have a question about "onclick" function in JavaScript. Here I have a div "InfoBar" <div id="InfoBar"><br> and two for loop var src = new Array(); for(var i = 0; i < 2; i++){ src.push("el1","el2"); } for(var j = 0; j < 2; j++){ doesFileExist(src[j]); } and a doesFileExist() and klick function function klick(el){ alert(el) } function doesFileExist(urlToFile){ document.getElementById('InfoBar').innerHTML += '<br>' + '<a id="css" onclick="klick(urlToFile)" href="#" title="'+urlToFile+'">' +

问题 I have a question about "onclick" function in JavaScript. Here I have a div "InfoBar" <div id="InfoBar"><br> and two for loop var src = new Array(); for(var i = 0; i < 2; i++){ src.push("el1","el2"); } for(var j = 0; j < 2; j++){ doesFileExist(src[j]); } and a doesFileExist() and klick function function klick(el){ alert(el) } function doesFileExist(urlToFile){ document.getElementById('InfoBar').innerHTML += '<br>' + '<a id="css" onclick="klick(urlToFile)" href="#" title="'+urlToFile+'">' +

问题 I'm trying to learn JS from a book (Beginner JavaScript by Jeremy McPeak), but I'm stuck with this code: <script> var myString = "56.02 degrees centigrade"; document.write("\"" + myString + "\" is " + parseInt(myString, 10) + " as an integer" + "<br/>"); </script> The result in html is this: "56.02 degrees centigrade" is 56 as an integer . What I don't understand is not explained in the book - why is this code written as it is? Could someone please explain in layman's terms why do we begin

问题 let's say we have two functions: def ftpConnect(): ftp = FTP('server') ftp.login() ftp.cwd('/path') def getFileList(): ftpConnect() files = ftp.nlst() print(files) If I call the getFileList() function it won't work because it doesn't know the ftp var. I know that if I declare the ftp variable inside ftpConnect() function as global it will work, but I was wondering if there is a better / more elegant way of doing it. 回答1: In my opinion, the most elegant solution would be to make a FTP-class,