编辑代码

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct Student{
	char name[20];
	int age;
	char addr[30];
	float score;
};
void addStudentInfo(struct Student stu[],int len,char name[],int age,char addr[],float score){
	int i = 0;
	int curLen = 0;
	for (i = 0; i < len; i++){
		if (stu[i].age != 0){
			curLen++;
		}
		else{
			break;
		}
	}
	strcpy(stu[curLen].name, name);
	strcpy(stu[curLen].addr, addr);
	stu[curLen].age = age;
	stu[curLen].score = score;	
}
void printStudentInfo(struct Student stu[],int len){

	printf("66666666666666666\n");
	int i = 0;
	int curLen = 0;
	for (i = 0; i < len; i++){
		if (stu[i].age != 0){
			curLen++;
		}
		else{
			break;
		}
	}
	printf("curlen = %d\n", curLen);
	for (i = 0; i < curLen; i++){
		printf("name = %s,age = %d,addr = %s,score = %f\n", stu[i].name, stu[i].age, stu[i].addr, stu[i].score);

		printf("*************************************\n");
		printf("*************************************\n");
	}
}
//void delStudentInfo(struct Student sInfo[],char name[20]){
//
//}
//
//
//void findStudentInfo(){
//
//}
void changeStudentInfo(struct Student sInfo[],int len, char name[20],int age,char addr[30],float score){
	int i = 0;
	int num = 0;
	for (i = 0; i < len; i++){
		if (sInfo[0].age == 0){
			break;
		}
		else
			num++;
	}
	for (i = 0; i < num; i++){
		if (!strcmp(sInfo[i].name,name)){
			sInfo[i].age = age;
			sInfo[i].score = score;
			strcpy(sInfo[i].addr, addr);
		}
	}
}
void main(){
	struct Student sInfo[54];
	int len = sizeof(sInfo) / sizeof(sInfo[0]);
	int item = 0;

	char name[20];
	char addr[30];
	int age = 0;
	float score = 0;
	memset(sInfo, 0, sizeof(sInfo));
	/*addStudentInfo(sInfo,len,"zhangsan",20,"襄阳",87.5);
	addStudentInfo(sInfo, len, "zhgsan674", 20, "襄dsfag阳", 187.5);
	addStudentInfo(sInfo, len, "zhanan23", 20, "襄", 807.5);
	addStudentInfo(sInfo, len, "zhan12", 20, "襄123阳", 787.5);
	printStudentInfo(sInfo,len);*/
	while (1){
		puts("请输出你的选项： 0 -- 退出系统  1--增加学员信息  2--删除学员信息  3--修改学员信息  4--打印学员信息 5--查找学员信息 ");
		scanf("%d", &item);
		printf("item = %d\n", item);
		switch (item){
		case 1:
			/*puts("请输入学生姓名");
			scanf("%s", &name);
			puts("请输入学生地址");
			scanf("%s", &addr);
			puts("请输入学生年龄");
			scanf("%d", &age);
			puts("请输入学生分数");
			scanf("%s", &score);*/
		addStudentInfo(sInfo,len,"zhansan",20,"xiangyang",87.5);
		addStudentInfo(sInfo, len, "wangwu", 20, "xiangyang", 87.5);
		addStudentInfo(sInfo, len, "lisi", 18, "zaoyang", 78.5);
		addStudentInfo(sInfo, len, "zhaoyun", 20, "xiangyang", 87.5);
			break;
		/*case 2:
			delStudentInfo();
			break;*/
		case 3:
			/*puts("请输入你要修改的学生名字");
			scanf("%s", &name);
			puts("请输入你要修改的学生年龄");
			scanf("%d", &age);
			puts("请输入你要修改的学生地址");
			scanf("%s", &addr);
			puts("请输入你要修改的学生分数");
			scanf("%f", &score);*/
			printf("333333333333333\n");
			changeStudentInfo(sInfo,len,"lisi",17,"上海",99.5);
			printf("444444444444444444444444\n");
			printStudentInfo(sInfo, len);
			printf("5555555555555555555555\n");
			break;
		case 4:
			printStudentInfo(sInfo,len);
			break;
			/*
		case 5:
			findStudentInfo();
			break;

		case 0:
			printf("系统将要退出\n");
			goto Label;*/
		}
	}
Label:
	printf("over\n");
	system("pause");
}
void main03(){
	char buf1[] = "hello world";
	printf("%d\n", strcmp(buf1, "hello ld"));
	system("pause");
}