为二维数组的大小声明常量
I'm beginning Objective-C and I'm trying to create a multidimensionnal array of integers, here is how I did it : 我开始了Objective-C我想创建一个多维的整数数组,我是这样做的: ...
如何在C中声明常量数组参数?
I can write 我可以写 #include <stdio.h>int main(const int argc, const char * const * const argv) { argv = NULL; printf("Hello, world\n"); r...
如何声明可从其他函数访问的二维数组?
I have a quick Question: 我有一个快速的问题: If I want to have a two dimensional array accessible from other functions, should I define it as a static ? and If...
在一个类中声明一个 static const 类型的数组,请问在哪里初始化?
在一个类中声明一个 static const 类型的数组,请问在哪里初始化? 如 class test{public:...protected:static const float t_sinf[360]}; t_sinf的值都为 sinf(i); 请问如何初始化?33 个解决方案 ...
如何声明一个常量数组?
就是数组的内容是不可改变的,类似于C中的const int a[] = {1,2,3} 在JAVA中写: final int[] a = {1,2,3},只是声明了a是一个常量,但a里面的内容并不是常量,执行a[0] = 3一样可以改变数组内容,只是不能执行a = new int[4]让a指向另...
php学习之 数组声明
php学习之 数组声明实现代码,需要的朋友可以参考下。
如何在c++中使用new声明一个2d数组?
How do i declare a 2d array using new? 如何使用new声明一个2d数组? Like, for a "normal" array I would: 比如,对于一个“正常”数组,我将: int* ary = new int[Size] but 但 int** ary...
在Perl中声明具有增量值的数组
I know it's possible to declare an array like this: 我知道可以声明这样的数组: my @array = ( 5 .. 10 ); which is equivalent to: 这相当于: my @array = ( 5, 6, 7, 8, 9, ...
C++和Java多维数组声明和初始化时的区别与常见问题
//C++只有在用{}进行初始化的时候才可以仅仅指定列数而不指定行数,因为可以通过直接//初始化时的元素个数自动计算出行数。而仅声明/创建数组而不初始化时,Cpp要求必须写明//行数和列数才能够创建数组变量,否则会报错说数组创建这一"函数"没有足够的参数。//但Java由于它自己的底层内存结构组织方...
如何在objective-c app中声明C样式数组?
I have two NSArrays, one of CLLocation and one of doubles (encased in objects) that I need to write to C vectors to draw a gradient MKPolyline as defi...
VB.NET如何声明已知长度的新空数组
Is there a way in VB.NET to declare an array, and later initialize it to a known length in the code? In other words, I'm looking for the VB.NET equiva...
声明一个负长度的数组
What happens in C when you create an array of negative length? 当创建一个长度为负的数组时,C中会发生什么? For instance: 例如: int n = -35;int testArray[n];for(int i = 0; i ...
数组声明、大小定义和c++中的销毁
So I'm unsure as to what the correct way is to do this. I have a class named someClass, with a private variable that is an array of integers. The size...
如何使用'n'维数组声明std :: vector?
My thoughts are the following: for e.g. a two-dimensional array: 我的想法如下:例如二维数组: int a[9][9];std::vector<int** a> b; But what if I have 但是,如果我有 /...
如何在Fortran中声明可分配标量数组?
Allocatable arrays are possible in Fortran 90 and up. 在Fortran 90及更高版本中可以使用可分配的阵列。 INTEGER, ALLOCATABLE, DIMENSION(:) :: test_int_array Allocatable sc...
如何一次声明一个全局数组
I have a global array but I didn't allocate memory until textbox event change. How can I consider the array created or not?! I wanna run "new arr[6]" ...
在c#中声明固定大小数组的列表
I've got a function which operates on pixels. I want to create one list with RGB values, but when I declare it this way: 我有一个对像素进行操作的功能。我想用RGB值创建一个列表,...
声明一个固定长度字符串的可变长度数组
I need an array of strings. The length of a string is known at compile-time and it is crucial that each string takes up this much space. The number of...
处理函数和数组声明[条款17]---《C++必知必会》
指向函数的指针声明和指向数组的指针声明容易混淆,原因在于函数和数组修饰符的优先级比指针修饰符的优先级高,因此通常需要使用圆括号。int *f1( );//一个返回值为 int* 的函数int ( *f2 )( );//一个指针,指向一个返回值为 int 的函数具有高优先级的数组修饰符存在同样的问题:...
在C89中的数组声明中使用sizeof()
I was under the impression that variable-size array declarations were not possible in C89. But, when compiling with clang -ansi I am able to run the f...