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@ -829,123 +829,104 @@ end
//函数功能:按姓名查找学生成绩并显示查找结果 //函数功能:按姓名查找学生成绩并显示查找结果
``` ```
void SearchbyName(STU stu[],int n,int m) function SearchbyName(STU stu[],int n,int m) do
{
char x[MAX_LEN]; char x[MAX_LEN];
int i,j; int i,j;
printf("Input the name you want to search:"); printf "Input the name you want to search:"
scanf("%s", x); input x
for(i=0;i<n;i++) for from i=0 to n-1 do
{ if strcmp(stu[i].name,x)==0 do
if(strcmp(stu[i].name,x)==0) printf "%ld\t%s\t",stu[i].num,stu[i].name"
{ for from j=0 to m-1 do
printf("%ld\t%s\t",stu[i].num,stu[i].name); printf "%.0f\t"
for(j=0;j<m;j++) end
{ printf ".0f\t%.0f\n"
printf("%.0f\t",stu[i].score[j]);
}
printf(".0f\t%.0f\n",stu[i].sum,stu[i].aver);
return; return;
} end
} end
printf("\nNot found!\n"); printf "\nNot found!\n"
} end
``` ```
//函数功能:统计各分数段的学生人数及所占的百分比 //函数功能:统计各分数段的学生人数及所占的百分比
``` ```
void StatisticAnalysis(STU stu[],int n,int m) funtion StatisticAnalysis(STU stu[],int n,int m) do
{
int i,j,t[6]; int i,j,t[6];
for(j=0;j<m;j++) for from j=0 do m-1 do
{ printf "For course %d:\n"
printf("For course %d:\n",j+1);
memset(t,0,sizeof(t)); //将数组 t 的全部元素初始化为0 memset(t,0,sizeof(t)); //将数组 t 的全部元素初始化为0
for(i=0;i<n;i++) for from i=0 to n-1 do
{ if stu[i].score[j]>=0&&stu[i].score[j]<60 set t[0]++
if(stu[i].score[j]>=0&&stu[i].score[j]<60) t[0]++; else if stu[i].score[j]<70 set t[1]++;
else if(stu[i].score[j]<70) t[1]++; else if stu[i].score[j]<80 set t[2]++;
else if(stu[i].score[j]<80) t[2]++; else if stu[i].score[j]<90 set t[3]++;
else if(stu[i].score[j]<90) t[3]++; else if stu[i].score[j]<100 set t[4]++;
else if(stu[i].score[j]<100) t[4]++; else if stu[i].score[j]==100 set t[5]++;
else if(stu[i].score[j]==100) t[5]++; end
} for from i=0 to 4 do
for(i=0;i<=5;i++) if i==0 printf "<60\t%d\t%.2f%%\n"
{ else if i==5 printf "%d\t%d\t%.2f%%\n"
if(i==0) printf("<60\t%d\t%.2f%%\n",t[i],(float)t[i]/n*100); else printf "%d-%d\t%d\t%.2f%%\n"
else if(i==5) printf("%d\t%d\t%.2f%%\n",(i+5)*10,t[i],(float)t[i]/n*100); end
else printf("%d-%d\t%d\t%.2f%%\n",(i+5)*10,(i+5)*10+9,t[i],(float)t[i]/n*100); end
} end
}
}
``` ```
//函数功能:打印学生成绩 //函数功能:打印学生成绩
``` ```
void PrintScore(STU stu[],int n,int m) function PrintScore(STU stu[],int n,int m) do
{
int i,j; int i,j;
for (i=0; i<n; i++) for from i=0 to n-1 do
{ printf "%ld\t%s\t"
printf("%ld\t%s\t", stu[i].num, stu[i].name); for from j=0 to m-1 do
for (j=0; j<m; j++) printf "%.0f\t"
{ end
printf("%.0f\t", stu[i].score[j]); printf "%.0f\t%.0f\n"
} end
printf("%.0f\t%.0f\n", stu[i].sum, stu[i].aver); end
}
}
``` ```
//输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中 //输出 n 个学生的学号、姓名及 m 门课程的成绩到文件 student.txt 中
``` ```
void WritetoFile(STU stu[],int n,int m) function WritetoFile(STU stu[],int n,int m) do
{
FILE *fp; FILE *fp;
int i, j; int i, j;
if((fp = fopen("student.txt","w")) == NULL) if fp = fopen("student.txt","w") == NULL do
{ printf "Failure to open score.txt!\n"
printf("Failure to open score.txt!\n");
exit(0); exit(0);
} end
fprintf(fp, "%d\t%d\n", n, m); //将学生人数和课程门数写入文件 fprintf(fp, "%d\t%d\n", n, m); //将学生人数和课程门数写入文件
for (i=0; i<n; i++) for from i=0 to n-1 do
{
fprintf(fp, "%10ld%10s", stu[i].num, stu[i].name); fprintf(fp, "%10ld%10s", stu[i].num, stu[i].name);
for (j=0; j<m; j++) for from j=0 to m-1 do
{
fprintf(fp, "%10.0f", stu[i].score[j]); fprintf(fp, "%10.0f", stu[i].score[j]);
} end
fprintf(fp, "%10.0f%10.0f\n", stu[i].sum, stu[i].aver); fprintf(fp, "%10.0f%10.0f\n", stu[i].sum, stu[i].aver);
} end
fclose(fp); fclose(fp);
} end
``` ```
//从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中 //从文件中读取学生的学号、姓名及成绩等信息写入到结构体 stu 中
``` ```
void ReadfromFile(STU stu[],int *n,int *m) function ReadfromFile(STU stu[],int *n,int *m) do
{
FILE *fp; FILE *fp;
int i, j; int i, j;
if ((fp = fopen("student.txt","r")) == NULL) if fp = fopen("student.txt","r") == NULL do
{ printf "Failure to open score.txt!\n"
printf("Failure to open score.txt!\n");
exit(0); exit(0);
} end
fscanf(fp, "%d\t%d", n, m); //从文件中读出学生人数,课程门数 fscanf(fp, "%d\t%d", n, m); //从文件中读出学生人数,课程门数
for (i=0; i<*n; i++) //学生人数保存在n指向的储存单元 for from i=0 to *n-1 do //学生人数保存在n指向的储存单元
{
fscanf(fp, "%10ld", &stu[i].num); fscanf(fp, "%10ld", &stu[i].num);
fscanf(fp, "%10s", stu[i].name); fscanf(fp, "%10s", stu[i].name);
for (j=0; j<*m; j++) //课程门数保存在m指向的储存单元 for form j=0 to *m-1 do //课程门数保存在m指向的储存单元
{
fscanf(fp, "%10f", &stu[i].score[j]); //不能用%10.0f fscanf(fp, "%10f", &stu[i].score[j]); //不能用%10.0f
} end
fscanf(fp, "%10f%10f", &stu[i].sum, &stu[i].aver); //不能用%10.0f fscanf(fp, "%10f%10f", &stu[i].sum, &stu[i].aver); //不能用%10.0f
} end
fclose(fp); fclose(fp);
} end
``` ```
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