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1、班级信息管理系统#include #include #include #includestruct contacks char name10;char age10;char sex10;char mobile10;char telephone10;char Email20;char address20;con50; int k=0;void enter(); void display(); void modify(); void del(); void save(); void query();void main() int a;doprintf(“nn *n“);printf(“ *“);
2、printf(“ttwelcome to contacks system“); printf(“tt*“);printf(“n *n“);printf(“ *“); printf(“t 1.Input information“); printf(“tttt*n“);printf(“ *“); printf(“t 2.Display information“); printf(“tttt*n“);printf(“ *“); printf(“t 3.Modify information“); printf(“tttt*n“);printf(“ *“); printf(“t 4.Delete inf
3、ormation“); printf(“tttt*n“);printf(“ *“); printf(“t 5.Save information“); printf(“tttt*n“);printf(“ *“); printf(“t 6.Query information“); printf(“tttt*n“);printf(“ *“); printf(“t 7.Exit “); printf(“tttt*n“);printf(“ *n“);printf(“ Enter you choice : “);scanf(“%d“,switch(a)case 1:printf(“n“);enter();
4、break;case 2:printf(“n“);display();break;case 3:printf(“n“);modify();break;case 4:printf(“n“);del();break;case 5:printf(“n“);save();break;case 6:printf(“n“);query();break;case 7:printf(“n“);exit(0);break;default:printf(“nThe choice is between 1 to 7.n“);while(a!=0);void enter() char ch20;printf(“nPl
5、ease enter the information:n“); do printf(“nname: “);scanf(“%s“,conk.name);printf(“nage:“);scanf(“%s“,conk.age);printf(“nsex:“);scanf(“%s“,conk.sex);printf(“nmobile: “);scanf(“%s“,conk.mobile);printf(“ntelephone: “);scanf(“%s“,conk.telephone);printf(“nEmail: “);scanf(“%s“,conk.Email);printf(“naddres
6、s: “);scanf(“%s“,conk.address);k+;printf(“nDo you continue to input the information(y/n): “);scanf(“%s“,ch);while(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0);display(); void display() int i; printf(“ the information is:n“); printf(“name age sex mobile telephone Email addressn“); for(i=0;ik;i+)printf(“-n“);pr
7、intf(“%s %s %s %s %s %s %s “,coni.name,coni.age,coni.sex,coni.mobile,coni.telephone,coni.Email,coni.address);printf(“n“);printf(“-n“);void modify() int i; char a20,ch10;printf(“nPlease enter the name:“);scanf(“%s“,a);for(i=0;ik;i+)if(strcmp(coni.name,a)=0)printf(“%s %s %s %s %s %s %s “,coni.name,con
8、i.age,coni.sex,coni.mobile,coni.telephone,coni.E mail,coni.address);printf(“nyou sure want change imformation (y/n): “);scanf(“%s“,ch);if(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0) printf(“nPlease enter the name you want to change:“);scanf(“%s“,a);for(i=0;ik;i+)if(strcmp(coni.name,a)=0)printf(“nyou sure to
9、change the name(y/n): “);scanf(“%s“,ch);if(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0)printf(“nname:“);scanf(“%s“,coni.name);printf(“nyou sure to change the age(y/n): “);scanf(“%s“,ch);if(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0)printf(“nage:“);scanf(“%s“,coni.age);printf(“nyou sure to change the sex(y/n): “);scanf
10、(“%s“,ch);if(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0)printf(“nsex:“);scanf(“%s“,coni.sex);printf(“nyou sure to change the mobile(y/n): “);scanf(“%s“,ch);if(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0)printf(“nmobile:“);scanf(“%s“,coni.mobile);printf(“nyou sure to change the telephone(y/n): “);scanf(“%s“,ch);if(strc
11、mp(ch,“y“)=0|strcmp(ch,“Y“)=0)printf(“ntelephone:“);scanf(“%s“,coni.telephone);printf(“nyou sure to change the Email(y/n): “);scanf(“%s“,ch);if(strcmp(ch,“y“)=0|strcmp(ch,“Y“)=0) printf(“nEmail:“);scanf(“%s“,coni.Email);printf(“nyou sure to change the address(y/n): “);scanf(“%s“,ch);if(strcmp(ch,“y“
12、)=0|strcmp(ch,“Y“)=0)printf(“naddress:“);scanf(“%s“,coni.address);display(); void del() int i,j; char c20,ch10; printf(“nenter you want delete name:n“); printf(“name:“); scanf(“%s“, for(i=0;ik;i+) if(strcmp(c,coni.name)=0) ; for(j=i;j=k;j+) conj=conj+1; printf(“ttyou had delete the information succe
13、ssful! %sn“,c); k-; display(); void save() FILE *fp; int i;if(fp=fopen(“tongxunlu.txt“,“w“)=NULL)printf(“cannot write the file.n“);exit(0);for(i=0;strlen(coni.name)!=0;i+)fprintf(fp,“%s %s %s %s %s %s %sn“,coni.name,coni.age,coni.sex,coni.mobile,coni.telephone,con i.Email,coni.address);fclose(fp); void query() int i;char a20; printf(“Please input the name you want to queryn“); scanf(“%s“,a); for(i=0;ik;i+)if(strcmp(coni.name,a)=0) printf(“the information you want to query is:n“); printf(“name age sex mobile telephone Email addressn“); printf(“-n“); printf(“%s %s %
