#include 滑空<string.h>
#define ARRAY_LEN 30
/*联系人结构体*/
/*注：本程序忽略重名现象。若重名则查找时以最后输入的联系人为准。*/
typedef struct{
char name[10]
int age
char sex[10]
char mp[13]
char tel[13]
} friend_list
/*打印所有联系人信息*/
void printAll (friend_list friList[], int *friNum) {
int 信乱瞎i
if (*friNum) {
printf ("姓名\t\t年龄\t\t性别\t\t手机\t\t家庭\n")
for (i=0 i<*friNum i++)
printf ("%s\t\t%d\t\t%s\t\t%s\t\t%s\n",friList[i].name,friList[i].age,friList[i].sex,friList[i].mp,friList[i].tel)
printf ("\n")
}
else {
printf ("无任何联系人信息！\n")
printf ("\n")
}
}
/*打印联系人信息*/
void printFri (friend_list friList[], int index) {
if (index==-1) {
printf ("查无此人！\n")
printf ("\n")
}
else {
printf ("姓名\t\t年龄\t\t性别\t\t手机\t\t家庭\n")
printf ("%s\t\t%d\t\t%s\t\t%s\t\t%s\n",friList[index].name,friList[index].age,friList[index].sex,friList[index].mp,friList[index].tel)
printf ("\n")
}
}
/*按姓名定位联系人所在数组位置*/
int findIndex (friend_list friList[], int *friNum, char *tarName) {
int i,index
index =-1
for (i=0 i<*friNum i++)
if (strcmp(tarName, friList[i].name) == 0) /*两字符串相等strcmp函数返回0*/
index = i /*定位联系人在结构体数组中的下标*/
return 陪裂index
}
/*录入联系人信息*/
void addFri (friend_list friList[], int *friNum) {
int i = *friNum
printf ("请输入联系人信息：\n")
printf ("姓名：")
scanf ("%s",&friList[i].name)
printf ("年龄：")
scanf ("%d",&friList[i].age)
printf ("性别：")
scanf ("%s",&friList[i].sex)
printf ("手机：")
scanf ("%s",&friList[i].mp)
printf ("家庭：")
scanf ("%s",&friList[i].tel)
*friNum +=1 /*联系人数加1*/
printf ("\n")
}
/*按姓名查找联系人信息*/
void findFri (friend_list friList[], int *friNum) {
int i,index
char tarName[10]
printf ("请输入欲查找的联系人姓名：")
scanf ("%s",&tarName)
printf ("\n")
index = findIndex (friList, friNum, tarName)
printFri (friList, index) /*打印联系人信息*/
}
/*删除联系人信息*/
void delFri (friend_list friList[], int *friNum) {
int i,index
char tarName[10]
printf ("请输入欲删除的联系人姓名：")
scanf ("%s",&tarName)
printf ("\n")
index = findIndex (friList, friNum, tarName)
if (index == -1) {
printf ("查无此人！\n")
printf ("\n")
}
else {
for (i=index i<*friNum i++)
friList[i] = friList[i+1]
*friNum-=1
printf ("联系人%s已删除！\n",tarName)
printf ("\n")
}
}
/*修改联系人信息*/
void altFri (friend_list friList[], int *friNum) {
int index
char tarName[10]
printf ("请输入欲修改的联系人姓名：")
scanf ("%s",&tarName)
printf ("\n")
index = findIndex (friList, friNum, tarName)
if (index == -1) {
printf ("查无此人！\n")
printf ("\n")
}
else {
printf ("请重新输入联系人信息：\n")
printf ("姓名：%s\n",friList[index].name)
printf ("年龄：")
scanf ("%d",&friList[index].age)
printf ("性别：")
scanf ("%s",&friList[index].sex)
printf ("手机：")
scanf ("%s",&friList[index].mp)
printf ("家庭：")
scanf ("%s",&friList[index].tel)
printf ("联系人%s信息已修改！\n",tarName)
printf ("\n")
}
}
/*打印菜单*/
void printMenu (void) {
printf ("======================================================\n\n")
printf ("序号\t功能详情\n")
printf ("1\t新增联系人\n")
printf ("2\t按姓名查找联系人\n")
printf ("3\t按姓名删除联系人\n")
printf ("4\t按姓名修改联系人\n")
printf ("5\t列出所有联系人信息\n")
printf ("6\t退出\n")
printf ("\n")
printf ("======================================================\n\n")
}
/*输入命令*/
int instructions (void) {
int key
printf ("请输入功能序号以开启 *** 作：")
scanf ("%d",&key)
printf ("\n")
printf ("======================================================\n\n")
return key
}
int main(void) {
int key
int friNum = 0 /*联系人数量*/
friend_list friList[ARRAY_LEN] /*联系人结构体数组*/
do {
printMenu ()
key = instructions ()
switch (key){
case 1: addFri (friList, &friNum) break
case 2: findFri (friList, &friNum) break
case 3: delFri (friList, &friNum) break
case 4: altFri (friList, &friNum) break
case 5: printAll (friList, &friNum) break
case 6: printf("程序结束！\n\n") break
default: printf("输入错误，请重新输入！\n\n")break
}
if (key!=6) {
printf("按回车键继续\n")getchar ()getchar ()
}
} while(key!=6)
return 0
}
运行结果
主界面
新增联系人
查找联系人
删除联系人
修改联系人
列出所有联系人
#include<stdio.h>int main()
{ int n,i,s=0,x
printf("考了几粗判门功课？\n"知销)
scanf("%d",&n)
printf("请输入%d门功课的成绩: \n")
for(i=0i<岩猛改ni++)
{ scanf("%d",&x)
s+=x
}
printf("总分是：%d\n",s)
return 0
}
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