C++ 学生信息管理系统.rar

#include <stdio.h> #include <windows.h> #include <conio.h> extern CONSOLE_SCREEN_BUFFER_INFO StdScreen; extern int Insert; void GotoXY(int x,int y)//光标移动到坐标(x,y) { HANDLE hConsole=GetStdHandle(STD_OUTPUT_HANDLE); COORD coordScreen={x,y}; SetConsoleCursorPosition(hConsole,coordScreen); return; } void Frame()//界面边框 { int i,count_line,count_line1; GotoXY(0,0); putchar(201); for(i=1;i<StdScreen.dwSize.X-1;i++) putchar(205); putchar(187); for(i=1;i<StdScreen.dwMaximumWindowSize.Y-2;i++) { GotoXY(0,i); putchar(186); GotoXY(79,i); putchar(186); } putchar(200); for(i=1;i<StdScreen.dwSize.X-1;i++) putchar(205); putchar(188); count_line=(StdScreen.dwSize.X-2-strlen("Message"))/2+(StdScreen.dwSize.X-2-strlen("Message"))%2; count_line1=count_line-(int)(StdScreen.dwSize.X-2-strlen("Message"))%2; GotoXY(1,StdScreen.dwMaximumWindowSize.Y-7); for(i=0;i<count_line;i++) putchar('-'); printf("Message"); for(i=0;i<count_line1;i++) putchar('-'); } void title_bar(int len)//标题框,len为框长 { int count_blank,i; GotoXY(1,1); count_blank=(StdScreen.dwSize.X-2-len)/2; printf("%*s",count_blank," "); putchar(218); for(i=0;i<len-2;i++) putchar(196); putchar(191); GotoXY(1,2); printf("%*s",count_blank," "); putchar(179); printf("%*s",len-2," "); putchar(179); GotoXY(1,3); printf("%*s",count_blank," "); putchar(192); for(i=0;i<len-2;i++) putchar(196); putchar(217); } void clear()//清屏 { int i; for(i=1;i<StdScreen.dwMaximumWindowSize.Y-7;i++) { GotoXY(1,i); printf("%*s",StdScreen.dwMaximumWindowSize.X-2," "); } GotoXY(1,StdScreen.dwMaximumWindowSize.Y-6); printf("%*s",StdScreen.dwSize.X-2," "); } int GetString(char a[],int len) { int i,j; char b; HANDLE hConsole=GetStdHandle(STD_OUTPUT_HANDLE); SetConsoleTextAttribute(hConsole,241); i=0; while(1) { b=getch(); for(j=i;j>0;j--) putchar('\b'); if(b==8) { if(i>0) { i--; for(j=i;j<len-1;j++) a[j]=a[j+1]; a[j]=32; } } else if(b==9 || b==13) return 4; else if(b==-32) { b=getch(); if(b==71) i=0; else if(b==75) if(i>0) i--; else return 3; else if(b==77) if(i<len-1) i++; else return 4; else if(b==79) i=len-1; else if(b==82) Insert=!Insert; else if(b==83) { for(j=i;j<len-1;j++) a[j]=a[j+1]; a[j]=32; } else if(b==72) return 1; if(b==80) return 2; } else if(b==0) getch(); else if(b==27) return 5; else { if(!Insert) a[i]=b; else { for(j=len-1;j>i;j--) a[j]=a[j-1]; a[i]=b; } if(i<len-1) i++; } for(j=0;j<len;j++) putchar(a[j]); for(;j>i;j--) putchar('\b'); } } int judge(char a[])//判断输入是否符合成绩输入的要求 { if(a[0]==32) { if(a[1]==32) { if(a[2]==32) { if(a[3]<='9' && a[3]>='0') return 1; else return 0; } else if(a[2]<='9' && a[2]>='0') { if((a[3]<='9' && a[3]>='0') || a[3]==32) return 1; else return 0; } else return 0; } else if(a[1]<='9' && a[1]>='0') { if(a[2]==32) { if(a[3]==32) return 1; else return 0; } else if(a[2]<='9' && a[2]>='0') { if(a[3]==32) return 1; else if(a[1]=='0' && a[3]<='9' && a[3]>='0') return 1; else if(a[1]=='1' && a[2]=='0' && a[3]=='0') return 1; else return 0; } else if(a[2]==46) { if(a[3]=='0' || a[3]=='5') return 1; else return 0; } } else return 0; } else if(a[0]<='9' && a[0]>='0') { if(a[1]==32) { if(a[2]==32) { if(a[3]==32) return 1; else return 0; } else return 0; } else if(a[1]<='9' && a[1]>='0') { if(a[2]==32) { if(a[3]==32) return 1; else return 0; } else if(a[2]==46) { if(a[3]=='0' || a[3]=='5') return 1; else return 0; } else if(a[0]=='0' && a[2]<='9' && a[2]>='0') { if(a[3]==32) return 1; else if(a[1]=='0' && a[3]<='9' && a[3]>='0') return 1; else if(a[1]=='1' && a[2]=='0' && a[3]=='0') return 1; else return 0; } else if(a[0]=='1' && a[1]=='0' && a[2]=='0' && a[3]==32) return 1; else return 0; } else if(a[1]==46) { if((a[2]=='0' || a[2]=='5') && a[3]==32) return 1; else return 0; } else return 0; } return 0; } int kind(char a[])//判断成绩输入的不合法种类，1为非数字，0为不正确的数字 { int i; for(i=0;i<4;i++) if(!(isdigit(a[i])) && a[i]!=46 && a[i]!=32) return 1; return 0; } double atolf(char a[]) { double sum=0; int i,j,tem; for(i=1;i<3;i++) if(a[i]==46) break; if(i==3) { for(j=3;j>=0;j--) if(isdigit(a[j])) break; for(tem=1;j>=0 && isdigit(a[j]);j--,tem*=10) sum+=(a[j]-48)*tem; } else { for(j=i-1,tem=1;j>=0 && isdigit(a[j]);j--,tem*=10) sum+=(a[j]-48)*tem; sum+=(a[i+1]-48)*0.1; } return sum; } char *inttoa(int a,char b[]) { b[0]=a/100+48; b[1]=a%100/10+48; b[2]=a%10+48; return b; }