How to delete a specified element in a character array …

In C language, character arrays cannot directly remove specific elements, but the effect of deleting a specific element can be achieved through other means. One common method is:

1. Iterate through the character array to locate the position of the element to be deleted.
2. Move all elements after this position forward by one space.
3. Reducing the length of an array by 1 is equivalent to deleting an element.

Here is an example code:

#include <stdio.h>
#include <string.h>

void deleteElement(char array[], int length, char element) {
    int i, j;
    
    // 找到要删除的元素的位置
    for (i = 0; i < length; i++) {
        if (array[i] == element) {
            break;
        }
    }
    
    // 将该位置之后的所有元素向前移动一位
    for (j = i; j < length - 1; j++) {
        array[j] = array[j+1];
    }
    
    // 将数组的长度减1
    length--;
    
    // 输出删除元素后的数组
    for (i = 0; i < length; i++) {
        printf("%c ", array[i]);
    }
    printf("\n");
}

int main() {
    char str[] = "Hello";
    int length = strlen(str);
    char element = 'l';
    
    deleteElement(str, length, element);
    
    return 0;
}

When running the above code, the character array with deleted elements will output as “H e o”.