经典c程序100例

i<n;i++)\r{ putc(c[i], fp);\rputchar(c[i]);\r)\rfclose (fp);\r}\rI? ? 100ž\rLM‡ŸV ¡H¢V ¡‡3 £¤?u¥HNOPQR}]\n¦(§¨ ¡©Hª«H¬£\r¤ u ¥ )H­`\r®¯u¥H°±‡?\n¦Š­`?®¯\n|²\Pyz'stud'@b\r1 .??\r2 .??\r#include 'stdio. h'\rstruct student\r{ char num[6];\rchar name[8];\rint score[3];\rfloat avr;\r} stu[5];\rmain ()\r{int i, j, sum;\rFILE *fp;\r/*input*/\rfor(i=0;i<5;i++)\r{ printf (zH\n please input No. %d score:\nHz, i);\rprintf('stuNo:')A\rscanf (zz%sHz, stu[i]. num);\rprintf("name:');\rscanf ('%s'Hstu[i]. name);\rsum=0;\rfor(j=0;j<3;j++)\r{ printf ("score %d. 'Hj+1);\rscanf &stu [i ]. score[j]);\rsum+=stu[i]. score[j];\r}\rstu[i ]. avr=sum/3. 0;\r)\rfpfopen('stud'H'w");\rfor(i=0;i<5;i++)\rif(fwrite(&stu[i], sizeof(struct student), 1, fp)!=1)\rprintf("file write error\n')A\rfclose(fp);