使用eglSwapBuffers API,eglSwapBuffers执行抛出错误码:EGL_BAD_SURFACE (300d)。日志显示:QEGLPlatformContext: eglSwapBuffers failed: 300d。 使用eglSwapBuffers API,eglSwapBuffers执行抛错错误码:EGL_BAD_ALLOC。 OpenGL同一个上下文在多线程中使用问题 关于GL_TEXTURE_2D和GL_TEXTURE_EXTERNAL_OES纹理类型...
7. python 类的 static variable 在类的__init__()中, 引出的变量为实例变量, 直接在类块中引出的变量为静态变量. 8. python 类的 static method 和 class method python中有static method 和 class method之分, 一般讲, 差异不大, 可以混着用. @staticmethod decorator之后的方法为static方法. ...
7. python 类的 static variable 在类的__init__()中, 引出的变量为实例变量, 直接在类块中引出的变量为静态变量. 8. python 类的 static method 和 class method python中有static method 和 class method之分, 一般讲, 差异不大, 可以混着用. @staticmethod decorator之后的方法为static方法. @classmethod...
How to set the correct timezone to get a isoformat datetime string in Python? I need to assign to a variable the current datetime string in isoformat like the following: What I'm doing is: But this is going to print the string with utc tz: Not clear yet to me what's the clean w...
I quite often find myself in a situation where I want to store some configuration in a class-variable, so that I can get different behaviour in different subclasses. Quite often this starts with a top-level base class that has the methods, but without a reasonable value to use in the co...
Encapsulation is done by declaring all the variables in a class as private while writing methods declared as public to set and retrieve variable values. While abstraction is the process of hiding unwanted data, encapsulation is the process of hiding data with the goal of protecting that information...
How to set the correct timezone to get a isoformat datetime string in Python? I need to assign to a variable the current datetime string in isoformat like the following: What I'm doing is: But this is going to print the string with utc tz: Not clear yet to me what's the clean w...
getVariable()方法是一个静态方法,而return返回值intVariable却是一个非静态的变量,所以出现第一个编译错误,同样的道理,main()方法是一个静态方法,不能直接调用一个非静态的方法,但是,非静态方法是可以调用该类中的静态变量和静态方法的。 静态方法是属于类的方法,不属于类的对象。所以静态方法中不存在this。
PythonStreamer.sendBroadCastVariables(...)/** * Sends all broadcast-variables encoded in the configuration to the external process. * * @param config configuration object containing broadcast-variable count and names * @throws IOException */ public final void sendBroadCastVariables(Configuration config) ...
- Program type: "Program" - body: [ - VariableDeclaration { type: "VariableDeclaration" - declarations: [ - VariableDeclarator { type: "VariableDeclarator" - id: Identifier { type: "Identifier" name: "name" } - init: Literal { type: "Literal" value: "jackdan" raw: "jackdan" } } ...