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This article mainly introduces the C language how to delete an array value, the article is very detailed, has a certain reference value, interested friends must read it!

1. Preface

Idle at home or idle, these days have witnessed the power of various data structures of Python. The data types in Python, such as lists, tuples, dictionaries and so on, have their own characteristics. There is no need to set the length of the list, we can insert elements randomly, and the type of elements is arbitrary.

Perhaps this is the power of object-oriented languages. C, as a process-oriented language, is naturally not as powerful as Python. Learning C language without pointers and structures is really impossible. It is very difficult to use C language for string processing in CCF exams, but it is easy to use an object-oriented language such as C++.

2. Delete the elements in the array

In python, we can easily delete specific elements using the following methods:

Lang = ["Python", "C++", "Java", "PHP", "Ruby", "MATLAB"] # use positive index del lang [2] print (lang)

However, everything in C language has to be built on its own. The first experiment in learning data structures is related to sequential table processing, and this is one of the operations introduced here.

Here we can define a function with the array name and the array length as arguments:

Void del_element (int arr [], int n) / / n is the number of elements in the array

Although the length of the array needs to be given by ourselves, we do not need to directly write out the specific number of elements, but directly assign values to the array first.

Int arr [] = {1, 4, 5, 7}

Since we want to delete the elements in the array, we must first know which elements are in the array. At the same time, you also define a variable and assign the element that needs to be deleted to that variable.

Int delect=0; printf ("Array before delete operation:\ n"); for (int k = 0 * * k

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