latest.c

linux 软件工程师C语言版,经典linuxC语言编程,诸多案例

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#define sumno 10
int face();
void writes();
void reads();
void sorts();
void searches();
struct test
{
    char name[20];
    char No[15];
}s[sumno];
FILE * fp;
int m;
int main()
{
    face();
    return 0;
}
//////////////////////////////////////////////////////////////////////////////////
int face()
{
	int rev;
	printf("\n\n\n\n\n\n\n");
	printf("\t\t ********************Welcome");
	printf("********************\n");
	printf("                 *******************PhoneBook");
	printf("*******************\n");
	printf("\t\t              1.Add anumbers                    \n");
	printf("\t\t              2.Read the numbers                \n");
	printf("\t\t              3.sorts                           \n");
    printf("\t\t              4.searches                        \n");
    printf("\t\t              5.qiut                            \n");
	printf("\t\t              Please Select(1-5):     ");
	scanf("%d",&rev);
	switch(rev)
	{
		case 1:
			writes();
			break;
		case 2:
			reads();
			break;
                case 3:
			sorts();
			break;
                case 4:
			searches();
			break;
		case 5:
			return 0;	
	}
        return 0;
}
/////////////////////////////////////////////////////////////////////////////////
void writes()
{
     int n;
     printf("How many do you want to insert(0<m<11):");
     scanf("%d",&m);
     for(n=0;n<m;n++)
     {
        printf("Insert the Name:");
        scanf("%s",&s[n].name);
        printf("Insert the No:");
        scanf("%s",&s[n].No);
      }
     fp = fopen("file1","a+");
     fwrite(s,sizeof(struct test),m,fp);
     fclose(fp);
     printf("Add successfully!\n");
     face();
}
////////////////////////////////////////////////////////////////////////////////
void reads()
{
    int i;
    fp = fopen("file1","r");
    fread(s,sizeof(struct test),sumno,fp);
    fclose(fp);
    printf("The content:\n");
    for(i=0;i<sumno;i++)
       printf("%-20s %s\n",s[i].name,s[i].No);
    face();
}
////////////////////////////////////////////////////////////////////////////////
void sorts()
{
    int i,j,k;
	char string[20];
	char strno[15];
    fp = fopen("file1","r");
    fread(s,sizeof(struct test),sumno,fp);
    fclose(fp);
    for(j=0;j<sumno;j++)
	   for(k=0;k<sumno-j;k++)
		    if(strcmp(s[k].name,s[k+1].name) <0) 
            { 
                strcpy(string,s[k].name);
				strcpy(strno,s[k].No);
				strcpy(s[k].name,s[k+1].name);
				strcpy(s[k].No,s[k+1].No);
				strcpy(s[k+1].name,string);
				strcpy(s[k+1].No,strno); 
            } 	
    printf("The new order:\n");
    for(i=0;i<sumno;i++)
       printf("%-20s %s\n",s[i].name,s[i].No);
    face();
}
/////////////////////////////////////////////////////////////////////////////////
void searches()
{
	char name[20];
	int i;
	printf("Whose number do you wanna find:");
	scanf("%s",&name);
	fp = fopen("file1","r");
    fread(s,sizeof(struct test),sumno,fp);
    fclose(fp);
	for(i=0;i<sumno;i++)
	{
		if(strcmp(s[i].name,name)==0)
		{
			printf("The one you wanna find is:\n");
	        printf("%-20s %s\n",s[i].name,s[i].No);
		}
		else
		{
			printf("The people you find is not in the phoonbook!");
		}
        }
	face();
}