在线教育知识付费网站源码系统+直播+小程序，安装教程

 在本文中，我们将讨论创建在线教育知识付费阅读网站源码系统的方法，其中用户有以下选项：

 完整源码：zx.xcxyms.top

 搜索知识库；

 显示阅读信息；

 列出给定词的所有数据；

 获取下载权限及分级。

 所需功能：

 如果用户尝试某一特定知识，则用户必须提供以下有关该知识点的特定信息：

 输入名称：

 输入使用范围：

 输入页面：

 输入价格：

 在线教育知识付费系统系统还必须能够计算数据库中所有可用的知识包。

 以下是在线教育知识付费系统的源码程序：

// C program for the E-library
// Management System
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// Create Structure of Library
struct library {
  char book_name[20];
  char author[20];
  int pages;
  float price;
};

// Driver Code
int main()
{
  // Create a instance
  struct library lib[100];

  char ar_nm[30], bk_nm[30];

  // Keep the track of the number of
  // of books available in the library
  int i, input, count;

  i = input = count = 0;

  // Iterate the loop
  while (input != 5) {

    printf("\n\n********######"
      "WELCOME TO E-LIBRARY "
      "#####********\n");
    printf("\n\n1. Add book infor"
      "mation\n2. Display "
      "book information\n");
    printf("3. List all books of "
      "given author\n");
    printf(
      "4. List the count of book"
      "s in the library\n");
    printf("5. Exit");

    // Enter the book details
    printf("\n\nEnter one of "
      "the above: ");
    scanf("%d", &input);

    // Process the input
    switch (input) {

    // Add book
    case 1:

      printf("Enter book name = ");
      scanf("%s", lib[i].book_name);

      printf("Enter author name = ");
      scanf("%s", lib[i].author);

      printf("Enter pages = ");
      scanf("%d", &lib[i].pages);

      printf("Enter price = ");
      scanf("%f", &lib[i].price);
      count++;

      break;

    // Print book information
    case 2:
      printf("you have entered"
        " the following "
        "information\n");
      for (i = 0; i < count; i++) {

        printf("book name = %s",
          lib[i].book_name);

        printf("\t author name = %s",
          lib[i].author);

        printf("\t pages = %d",
          lib[i].pages);

        printf("\t price = %f",
          lib[i].price);
      }
      break;

    // Take the author name as input
    case 3:
      printf("Enter author name : ");
      scanf("%s", ar_nm);
      for (i = 0; i < count; i++) {

        if (strcmp(ar_nm,
            lib[i].author)
          == 0)
          printf("%s %s %d %f",
            lib[i].book_name,
            lib[i].author,
            lib[i].pages,
            lib[i].price);
      }
      break;

    // Print total count
    case 4:
      printf("\n No of books in "
        "brary : %d",
        count);
      break;
    case 5:
      exit(0);
    }
  }
  return 0;
}

 　源码结构图：