base

Base convert in python given a string

由 浪子不回头ぞ 提交于 2020-01-03 17:26:12
问题 In PHP, given a string value ( integers separated by chars ), we can calculate its integer representation: $hashable = "123A123"; // notice "A" delim $hash_int = base_convert($hashable, 11, 10); echo $hash_int; Output 2151042 It's useful because result is unique for huge range of strings (short ones, of course). I use it for ID generation in my application. How can we do same conversions in python? Is it possible to generate equal integers for same strings in both PHP and python? Maybe first

[Android 問題] How to Activate Multi-Touch in WebView (for Web Browser, Google Map, etc)?

由 Deadly 提交于 2020-01-02 07:55:02
Android's native web browser is webkit based. Each front view of web is an object of WebView added by TabControl as the structure illustrated below: Android originally support multi-touch scenerio. In framworks/base/core/java/android/webkit/WebView.java, There is a function showed below checking if current environment support multi-touch. void updateMultiTouchSupport(Context context) { WebSettings settings = getSettings(); mSupportMultiTouch = context.getPackageManager().hasSystemFeature( PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH) && settings.supportZoom() && settings

NSLocalizedString not defaulting to Base language

由 廉价感情. 提交于 2020-01-02 02:17:08
问题 I have the following problem with a small iOS 7 project on which I'm testing the localisation capabilities. I have a default project, with one VC, in which I have one button in the middle of the scene in my VC I have an IBOutlet to my button called myButton in the viewDidLoad method of the VC I am setting the buttons's title: NSString *title = NSLocalizedString(@"MY_BUTTON", @"My comment for my button"); [self.myButton setTitle:title forState:UIControlStateNormal]; I generated the Localizable

Get address of base object from derived object

由 谁说我不能喝 提交于 2020-01-01 19:19:33
问题 I'm getting a very confusing error in my program. I think I may have two different objects of the same class where I thought I had the same object. It is confusing because I am dealing with a very large framework where it is not simple to obtain a pointer to the object I need. My question is, if I have a class Derived which in inherits from Base, and I have a pointer to a Derived object, how can I get the address of the Base object from the derived object? I am working with the source code of

Base URL - How to call the home link

由 独自空忆成欢 提交于 2020-01-01 04:27:19
问题 Here an example of my base URL <base href="http://subdomain.domain.com/folder/" /> I would like to know how to call that base URL for the HOME link when I try <a href="/">Home</a> It redirect to http://subdomain.domain.com/ and not in the /folder/ 回答1: What you need is the virtual directory name of your application/website. This is a server variable, and it is not possible to get it in HTML alone, you need some server side component, like PHP or ASP.NET. If you are in the root directory, you

PHP - What is a good way to produce a short alphanumeric string from a long md5 hash?

由 孤者浪人 提交于 2020-01-01 01:33:07
问题 This is for the purpose of having a nice short URL which refers to an md5 hash in a database. I would like to convert something like this: a7d2cd9e0e09bebb6a520af48205ced1 into something like this: hW9lM5f27 Those both contain about the same amount of information. The method doesn't have to be direct and reversible but that would be nice (more flexible). At the least I would want a randomly generated string with the hex hash as the seed so it is reproducible. I'm sure there are many possible

How to convert an arbitrary large integer from base 10 to base 16?

由 走远了吗. 提交于 2019-12-31 17:23:38
问题 The program requires an input of an arbitrary large unsigned integer which is expressed as one string in base 10. The outputs is another string that expresses the integer in base 16. For example, the input is "1234567890987654321234567890987654321234567890987654321", and the output shall be "CE3B5A137DD015278E09864703E4FF9952FF6B62C1CB1" The faster the algorithm the better. It will be very easy if the input is limited within 32-bit or 64-bit integer; for example, the following code can do the

运行时类型识别（RTTI）

由 為{幸葍}努か 提交于 2019-12-31 17:06:37
dynamic_cast转换 dynamic_cast执行两步操作，先验证转换是否有效，有效则进行实际转换 class Base { public: virtual void fun1(void){printf("this is Base fun1().\n");} virtual void fun2(void){printf("this is Base fun2().\n");} virtual void fun3(void){printf("this is Base fun3().\n");} }; class Derive : public Base { public: virtual void fun1(void){printf("this is Derive fun1().\n");}; virtual void fun2(void){printf("this is Derive fun2().\n");}; virtual void fun3(void){printf("this is Derive fun3().\n");}; }; int _tmain(int argc, _TCHAR* argv[]) { // 将基类指针转换为派生类指针 Base *pBase = new Derive(); // 转换失败dynamic_cast返回0 if (Derive

Base conversion function in VBScript

由 不羁岁月 提交于 2019-12-31 03:56:13
问题 Is there a function built into VBScript (for wscript or cscript ) that would take a number and convert it to base 2? For example, Base2(45) would output "101101" . 回答1: I'm not aware of anything built-in, but it's easy enough to create a general-purpose routine that can handle binary and other bases. If you define symbols from 0 to Z , you can handle everything up to base 36, for example. Function ToBase(ByVal n, b) ' Handle everything from binary to base 36... If b < 2 Or b > 36 Then Exit

Second argument to parseFloat in JavaScript?

由 ＊爱你＆永不变心＊ 提交于 2019-12-30 16:26:24
问题 In this font-size resizing tutorial: Quick and easy font resizing the author uses parseFloat with a second argument, which I read here: parseFloat() w/two args Is supposed to specify the base of the supplied number-as-string, so that you can feed it '0x10' and have it recognized as HEX by putting 16 as the second argument. The thing is, no browser I've tested seems to do this. Are these guys getting confused with Java? 回答1: No, they're getting confused with parseInt() , which can take a radix
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