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C_ʹÓÃswitchÓï¾ä

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# include <stdio.h>
 
int main()
{
    int num;
    /* ÏÂÃæ¶¨ÒåµÄ¸÷±äÁ¿£¬·Ö±ð´ú±í¸öλ£¬Ê®Î»£¬°Ùλ£¬Ç§Î»£¬Íòλ£¬Ê®ÍòλÒÔ¼°Î»Êý */
    int indiv, ten, hundred, thousand; 
    int ten_thousand, hundred_thousand, place;
 
    printf("ÇëÊäÈëÒ»¸öÕûÊý(0¡«999999)£º");
    scanf("%d", &num);
 
    /* ÅжϱäÁ¿numµÄλÊý */
    if(num > 99999)
        place = 6;
    else if(num > 9999)
        place = 5;
    else if(num > 999)
        place = 4;
    else if(num > 99)
        place = 3;
    else if(num > 9)
        place = 2;
    else
        place = 1;
    printf("place = %d\n", place);
     
    printf("ÿλÊý×ÖΪ£º");
 
    /* Çó³önumÔÚ¸÷λÉϵÄÖµ */
    hundred_thousand = num/100000;
    ten_thousand = (num - hundred_thousand*100000)/10000;
    thousand = (num - hundred_thousand*100000 - ten_thousand*10000)/1000;
    hundred = (num - hundred_thousand*100000 - ten_thousand*10000 
              - thousand*1000)/100;
    ten = (num - hundred_thousand*100000 - ten_thousand*10000 
          - thousand*1000 - hundred*100)/10;
    indiv = num - hundred_thousand*100000 - ten_thousand*10000 
            - thousand*1000 - hundred*100 - ten*10;
 
    /* Åжϱä


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 #include <stdio.h>
#define MAX 100
int a[MAX], b[MAX], count = 0;
void rData()
{ int i;
FILE *fp;
fp = fopen("C:\\100.dat", "r");
for (i=0; i<MAX; i++)
fscanf(fp, "%d,", &a[i]);
fclose(fp);
}
 
void main()
{ int i;
rData();
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