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# include <math.h>
# include <stdio.h>    /* Êýѧº¯Êý¿â */
 
int main()
{
    /* ÓÃs±íʾ¶àÏîʽµÄÖµ£¬ÓÃt±íʾÿһÏîµÄÖµ */
    double s, t, x; // ´Ë´¦ÓÃË«¾«¶ÈÉùÃ÷±äÁ¿
    int n;
    printf("please input x: ");
    scanf("%lf", &x); // £¥lf ´ú±íÓÃË«¾«¶ÈÊäÈë
    /* ¸³³õÖµ */
    t = x;
    n = 1;
    s = x;
    /* ½øÐеþ¼ÓÔËËã */
    do
    {
        n = n + 2 ;
        t = t * (-x*x)/((float)(n)-1)/(float)(n);
        s = s + t;
    } while (fabs(t)>=1e-8); // ±¾À´ÊÇÒª´óÓÚ0,µ«Ò²¿É´óÓÚÒ»¸öºÜСµÄÊý¼´¿É
    printf("sin(%f) = %lf\n", x, s);
    return 0;
}


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C_ÅжÏÓï¾äifµÄÒ»°ãʹÓÃ

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# include <stdio.h>
     
int main()
{
        int x, y, z, mid, dec;
        printf("ÇëÈÎÒâÊäÈëÈý¸öÕûÊý£º\n");
        scanf("%d %d %d", &x, & ......

C_ÅжÏÓï¾äifÓëelseµÄǶÌ×ʹÓÃ

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# include <stdio.h>
 
int main()
{
    /* sex´ú±íÊäѪÕßµÄÐÔ±ð£¬weight´ú±íÊäѪÕßµÄÌåÖØ£¬cubage´ú±íÊäѪÁ¿ */
    int sex, weight, cubage;
    printf("Çë¸ø³öÊäѪÕßµÄÐÔ±ð£¨Å®ÐÔΪ¸ºÊý£©ºÍÌåÖØ£º(ÓöººÅ¸ô¿ª)");
 &nbs ......

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_thous ......
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