课堂 test

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题一：

/* Note:Your choice is C IDE */#include "stdio.h"void main(){    int a;    printf ("Please enter a number:\n");    scanf ("%d",&a);    printf("十进制：%d ",a);    printf("八进制：%o ",a);    printf("十六进制：%x ",a);}

题二：

/* Note:Your choice is C IDE */#include "stdio.h"void main(){float a;    a=123.45678;    printf ("%8.4f ",a);    printf("%09.3f",a);}

题三：

/* Note:Your choice is C IDE */#include "stdio.h"void primer(){int a;scanf  ("%d",&a);    if (a>-1&&a<10)    printf ("ok");else    printf ("not ok");    }void main(){     int a; printf ("Please enter a number :\n");          primer (a);}

题四：

/* Note:Your choice is C IDE */#include "stdio.h"void primer (int a){scanf ("%d",&a);    {if (a>1000)      {printf ("big ");

       return 0；}}

    {if (a>=100&&a<=1000)      printf ("middle");     else      printf ("small");}    }void main(){     int a;     printf ("Please enter a number :\n");     primer (a);    }

题五：

/* Note:Your choice is C IDE */#include "stdio.h"int month (int i){  scanf ("%d",&i); if(i=1)  printf ("January"); return 0;     if(i=2)  printf ("February"); return 0;     if(i=3)  printf ("March"); return 0;     if(i=4)  printf ("April"); return 0;     if(i=5)  printf ("May"); return 0;     if(i=6)  printf ("June"); return 0;     if(i=7)  printf ("July"); return 0;     if(i=8)  printf ("August"); return 0;     if(i=9)  printf ("September"); return 0;     if(i=10) printf ("October"); return 0;     if(i=11) printf ("November"); return 0;     if(i=12) printf ("December"); return 0;}void main(){    int i;    printf ("Please a month:\n");    month (i);}

题六：

/* Note:Your choice is C IDE */#include "stdio.h"void main(){ int i,sum;sum=0;for(i=0;i<=100;i=i+2)sum+=i;printf("%d",sum);    }

题七：

/* Note:Your choice is C IDE */#include "stdio.h"void main(){ int a,sum;a=0;sum=0;while(a<=100){sum+=a;a=a+2;    }printf ("%d",sum);    }

题八：

/* Note:Your choice is C IDE */#include "stdio.h"void main(){    int a,sum;    sum=0;    a=0;    do {    sum+=a;    a=a+2;    }    while (a<=100);    printf ("%d ",sum);}

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