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162 lines
3.2 KiB
162 lines
3.2 KiB
#include <stdio.h>
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#include <string.h>
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struct stu {
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char num[6];
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char class[3];
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char name[6];
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float grade1;
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float grade2;
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float grade3;
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float grade;
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}s[10],ss;
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int main()
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{
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int bb=0;
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while(1)
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{
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printf("1.input\n");
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printf("2.delete\n");
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printf("3.select\n");
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printf("4.order\n");
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printf("5.output\n");
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printf("6.quit\n");
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printf("please intput your option\n");
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int input;
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scanf("%d",&input);
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if(input==1)
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{
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char ch[6];
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int i=0;
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while(1)
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{
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printf("Id ");
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scanf("%s",s[i].num);
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printf("class ");
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scanf("%s",s[i].class);
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printf("name ");
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scanf("%s",s[i].name);
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printf("score1 ");
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scanf("%f",&s[i].grade1);
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printf("score2 ");
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scanf("%f",&s[i].grade2);
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printf("score3 ");
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scanf("%f",&s[i].grade3);
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printf("continue?\n");
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i++;
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for(int j=0;j<i;j++)
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{
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s[i].grade=s[i].grade1+s[i].grade2+s[i].grade3;
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}
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scanf("%s",ch);
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if(strcmp(ch,"no")==0)
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break;
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}
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}
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else if(input==2)
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{
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bb=1;
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char de[6];
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while(1)
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{
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scanf("%s",de);
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for(int i=0;i<3;i++)
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{
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if(strcmp(s[i].num,de)==0&&i<2)
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{
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for(int j=i;j<2;j++)
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s[j]=s[j+1];
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}
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}
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for(int i=0;i<2;i++)
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{
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printf("%s %s %s %.1f %.1f %.1f\n",s[i].num,s[i].class,s[i].name,s[i].grade1,s[i].grade2,s[i].grade3);
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}
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printf("continue?\n");
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char ch[6];
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scanf("%s",ch);
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if(strcmp(ch,"no")==0)
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break;
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}
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}
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else if(input==3)
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{
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char in[6];
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int aa=0;
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while(1)
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{
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scanf("%s",in);
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for(int i=0;i<2;i++)
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{
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if(strcmp(in,s[i].num)==0||strcmp(in,s[i].class)==0)
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{
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printf("%s %s %s %.1f %.1f %.1f\n",s[i].num,s[i].class,s[i].name,s[i].grade1,s[i].grade2,s[i].grade3);
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aa=1;
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}
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}
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if(aa==0)
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printf(" there is no eligible student");
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printf("continue?\n");
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char ch[6];
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scanf("%s",ch);
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if(strcmp(ch,"no")==0)
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break;
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}
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}
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else if(input==4)
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{
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if(bb==0)
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{
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strcpy(s[0].num,"10001");strcpy(s[0].class,"11");strcpy(s[0].name,"zhang");s[0].grade1=99.5;s[0].grade2=88.5;s[0].grade3=89.5;s[0].grade=277.5;
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strcpy(s[2].num,"10003");strcpy(s[2].class,"11");strcpy(s[2].name,"wang");s[2].grade1=92.5;s[2].grade2=99.0;s[2].grade3=60.5;s[2].grade=252.0;
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strcpy(s[1].num,"10002");strcpy(s[1].class,"22");strcpy(s[1].name,"li");s[1].grade1=77.9;s[1].grade2=56.5;s[1].grade3=87.5;s[1].grade=221.9;
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for(int i=0;i<2;i++)
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{
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for(int j=i+1;j<3;j++)
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{
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if(strcmp(s[i].class,s[j].class)>0)
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{
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ss=s[i];
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s[i]=s[j];
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s[j]=ss;
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}
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}
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}
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for(int i=0;i<1;i++)
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{
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for(int j=i+1;j<2;j++)
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{
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if(s[i].grade<s[j].grade)
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{
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ss=s[i];
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s[i]=s[j];
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s[j]=ss;
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}
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}
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}
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}
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}
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else if(input==5)
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{
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if(bb=0)
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{
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for(int i=0;i<4;i++)
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{
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printf("%s %s %s %.1f %.1f %.1f %.1f\n",s[i].num,s[i].class,s[i].name,s[i].grade1,s[i].grade2,s[i].grade3,s[i].grade);
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}
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}
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else
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{
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for(int i=0;i<2;i++)
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{
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printf("%s %s %s %.1f %.1f %.1f %.1f\n",s[i].num,s[i].class,s[i].name,s[i].grade1,s[i].grade2,s[i].grade3,s[i].grade);
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}
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}
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}
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else if(input==6)
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break;
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}
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return 0;
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} |