10-leaf Baoan

Chapter I.

Experiment one, the writing Experiment of command explanation program
First, the purpose of the experiment
(1) Master the Principle of command interpretation procedure;
(2) Master the simple Dos call method;
(3) Master C language programming preliminary.
Test methods, steps and Results

#include <stdio.h> #include <stdlib.h> #include <string.h> int main () {char str[30];    printf ("Please enter command:");        Do{gets (str);        if (strcmp (str, "dir") ==0) {printf ("dir means no parameters: View the file currently in the directory \ n"); } else if (strcmp (str, "CD") ==0) {printf ("CD directory name: Enter a specific directory.                                \ n "); } else if (strcmp (str, "MD") ==0) {printf ("MD Directory name: establishes a specific folder.           Dos under the habit called Directory, win under the habit called folder \ n "); } else if (strcmp (str, "RD") ==0) {printf ("Rd Directory name: delete a specific folder.                    \ n ");             } else if (strcmp (str, "CLS") ==0) {printf ("CLS Directory Name: Clear screen function \ n");           } else if (strcmp (str, "data") ==0) {printf ("Data set date command, function is set date \ n"); } else if (strcmp (str, "time") ==0) {printf ("Clock Setup command, function: Set or display system period.              \ n ");           } else if (strcmp (str, "Ren") ==0) { printf ("Ren" means that the file is renamed, and the Ren command is in the format: the file name of the Ren source file name.)         \ n ");         } else if (strcmp (str, "copy") ==0) {printf ("Copy represents the Copy command, and the replication information of his function \ n");              } else if (strcmp (str, "help") ==0) {printf ("No Parameters: View files and folders in the current directory \ n"); printf ("CD directory name: Enter a specific directory.              \ n "); printf ("MD Directory name: Create a specific folder.              Dos under the habit called Directory, win under the habit called folder) \ n "); printf ("Rd Directory name: delete a specific folder.")             \ n ");              printf ("CLS Directory Name: Indicates clear screen function \ n");              printf ("Data set date command, function is set date \ n"); printf ("Time system clock Settings command, function: Set or display system period.")              \ n "); printf ("Ren" means that the file is renamed, and the Ren command is in the format: the file name of the Ren source file name.)              \ n ");                    printf ("Copy means copy command, copy information of his function \ n");                     } else {printf ("You entered the wrong information, please reenter: \ n"); }}while (strcmp (str, "quit") ==0) return 0;}


After this study, let me review the freshman learned C + +, this learning deep experience, I will continue to work

10-leaf Baoan