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Today, I would like to share with you the relevant knowledge of what C++ 's original array is. The content is detailed and the logic is clear. I believe most people still know too much about this, so share this article for your reference. I hope you can get something after reading this article, let's take a look at it.

1. Array 1.1 the declaration format of the array is 1.1.1. Format one

Data type array variable name [number of array elements] {initialization value, initialization value.}

Int a [10] {}; 1.1.2. Format two

Variable type array name [] {initialization, initialization.}

Int a [] {1,2,3}; / / the compiler automatically declares an as an array of 3 elements. The essence of an array

The essence of an array is to apply for a continuous period of memory space from the operating system according to the type of data requested. Two characteristics:

Continuous and orderly.

two。 The array traverses 2.1. Regular int studentId [] {101,102,103,104,105,106}; / / Array traverses for (int I = 0; I < sizeof (studentId) / sizeof (int); iTunes +) std::cout

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