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Çó³ön¸öѧÉúÒ»ÃſγÌÖеÄ×î¸ß³É¼¨ºÍ×îµÍ³É¼¨¼°¸ßÓÚÆ½¾ù³É¼¨µÄÈËÊý¡£ #include #define n 10 //×¢Ò⣬ºê¶¨Òådefine ºó²»´ø·ÖºÅ½áÊø·û¡£ main() { int a[n] = {60,100,70,67,90,99,89,40,77,56}; int avg=0,num=0,sum=0,max,min; int i; for(i=0;i<10;i++) { sum+=a[i]; } avg=sum/n; min=a[0]; max=a[0]; for(i=0;i<10;i++) { if(a[i] min=a[i]; if(a[i]>max) max=a[i]; if(a[i]>avg) num++; } printf(\ printf(\ system(\ } 3. //·½·¨1£ºÊ¹ÓÃÊý×飬Çó³öÏÂÁÐÊýÁеÄǰ20Ïî¡£1£¬1£¬2£¬4£¬7£¬13£¬¡¡ #include long a[20] = {1,1}; long sum=0; int i; for(i=3;i<20;i++) { a[i] = a[i-1]+a[i-2]+a[i-3]; } for(i=0;i<20;i++) { sum+=a[i]; } printf(\ system(\ } //·½·¨2£ºÊ¹ÓÃÊý×飬Çó³öÏÂÁÐÊýÁеÄǰ20Ïî¡£1£¬1£¬2£¬4£¬7£¬13£¬¡¡ #include long a[20] = {1,1}; long sum=2; int i; for(i=3;i<20;i++) { a[i] = a[i-1]+a[i-2]+a[i-3]; sum+=a[i] } printf(\ system(\ } 4. #include int i,temp; int a[n]={0,1,2,3,4,5}; for(i=0;i<=(n-1)/2;i++) { temp=a[i]; a[i]=a[n-1-i]; a[n-1-i]=temp; } for(i=0;i 5. //ÓÐ10¸öѧÉúÒ»Ãſγ̳ɼ¨£¬Ê¹ÓÃÑ¡ÔñÅÅÐò·¨½«³É¼¨´Ó¸ßÏòµÍÅÅÐò¡£ #include int main() { int i,j,k,t,min; int a[10]={77,99,69,76,87,90,100,88,66,80}; for(i=0;i<10;++i) {//Ñ¡³ö×îСֵËùÔÚµÄλÖÃj min=65535;//¿ÉÊÔÊԴ˾䲻ÔÚÑ»·ÄڵĽá¹û¡£ for(k=i;k<10;k++) { if(a[k] if(i!=j) {//½»»» t=a[i]; a[i]=a[j]; a[j]=t; } } for(i=0;i<10;i++) printf(\ system(\ return 0; } ʵÑéÁù£¨µÚ6ÕÂʵÑé¶þ£© ʵÑéÄ¿µÄ£º 1£® ÕÆÎÕ¶þάÊý×éµÄʹÓ÷½·¨¡£ 2£® Êý×éµÄ×ÛºÏÓ¦ÓᣠʵÑéÄÚÈÝ£º 1£®½«Ò»¸öһάÊý×éa[9]Öи÷ÔªËØÖµ°´ÐеÄ˳Ðò·ÅÈë¶þάÊý×éb[3¡Á3]¡£ 2£®ÓÐÒ»¸öm¡Án¾ØÕ󣬸÷ÔªËØÖµÓÉËæ»úÊý²úÉú£¬½«¾ØÕóÔö¼ÓÒ»ÁУ¬Çó¾ØÕóÿһÐеÄÔªËØÖµµÄºÍ£¬²¢½«Ã¿Ò»ÐеÄÔªËØÖµµÄºÍ·ÅÈëÔö¼ÓÁС£ 3£®ÓÐÒ»¸öm¡Án¾ØÕó£¬ÕÒ³ö×î´óÔªËØÖµ¼°Æä×î´óÔªËØÖµËùÔÚµÄÐС¢ÁÐλÖᣠ4£®ÓÐn¸ö¿¼Éú£¬Ã¿¸ö¿¼ÉúÓп¼ºÅºÍÒ»¸ö×ֳܷɼ¨£¬Èç¹û¼ȡmÈË£¬È·¶¨Â¼È¡·ÖÊýÏߣ¬²¢Êä³ö¼ȡ¿¼ÉúµÄ¿¼ºÅºÍ³É¼¨¡£ 5£®½«¾ØÕóm(n,n)¶Ô½ÇÏßÉϵÄÔªËØÖÃΪ1£¬ÆäÓàÔªËØÖÃΪ0¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º 1. //½«Ò»¸öһάÊý×éa[9]Öи÷ÔªËØÖµ°´ÐеÄ˳Ðò·ÅÈë¶þάÊý×éb[3*3] #include int main() { int i,j; int b[3][3]; int a[10]={77,99,69,76,87,90,100,88,66}; for(i=0;i<3;++i) for(j=0;j<3;j++) b[i][j]=a[3*i+j]; for(i=0;i<3;i++) { for(j=0;j<3;j++) { printf(\ } printf(\ } system(\ return 0; } 2. //ÓÐÒ»¸öm¡Án¾ØÕ󣬸÷ÔªËØÖµÓÉËæ»úÊý²úÉú£¬½«¾ØÕóÔö¼ÓÒ»ÁУ¬Çó¾ØÕóÿһÐеÄÔªËØÖµµÄºÍ£¬²¢½«Ã¿Ò»ÐеÄÔªËØÖµµÄºÍ·ÅÈëÔö¼ÓÁС£ #include #define n 4 int main() { int i,j; int a[m][n]; time_t t; srand((unsigned) time(&t)); printf(\ for (i=0; i a[i][j]=rand()0; printf(\ if(j!=0&&j%(n-2)==0) { a[i][n-1]=0; printf(\ } } printf(\ for(i=0;i for(j=0;j printf(\ } printf(\ } system(\ return 0; } 3. //ÓÐÒ»¸öm¡Án¾ØÕó£¬ÕÒ³ö×î´óÔªËØÖµ¼°Æä×î´óÔªËØÖµËùÔÚµÄÐС¢ÁÐλÖᣠ#include int i,j,max=-65536; int row,col; int a[m][n]={77,99,69,76,87,90,100,88,66}; for (i=0; i max=-65536; for(j=0;j if(a[i][j]>max) { max=a[i][j]; row=i;col=j; } } } printf(\ printf(\ÁíÒ»ÖÖÊä³ö·½Ê½ system(\ return 0; } 4. //ÓÐn¸ö¿¼Éú£¬Ã¿¸ö¿¼ÉúÓп¼ºÅºÍÒ»¸ö×ֳܷɼ¨£¬Èç¹û¼ȡmÈË£¬È·¶¨Â¼È¡·ÖÊýÏߣ¬²¢Êä³ö¼ȡ¿¼ÉúµÄ¿¼ºÅºÍ³É¼¨¡£ #include void SelectSort(int a[n][2])//Ñ¡ÔñÅÅÐò { int i,j,k,min,t0,t1; for(i=0;i {//Ñ¡³ö×îСֵËùÔÚµÄλÖÃj min=65535;//¿ÉÊÔÊԴ˾䲻ÔÚÑ»·ÄڵĽá¹û¡£ for(k=i;k if(i!=j) {//½»»» t1=a[i][1]; t0=a[i][0]; a[i][1]=a[j][1]; a[i][0]=a[j][0]; a[j][1]=t1; a[j][0]=t0; } } printf(\ for(i=0;i printf(\} int main() { int i,j,m; int a[n][2]={1,99,2,76,3,90,4,88}; SelectSort(a);//µ÷ÓÃÑ¡ÔñÅÅÐòº¯Êý£¬µÚ°ËÕÂÄÚÈÝ printf(\ scanf(\ printf(\ for (i=n-m; i printf(\ } system(\ return 0; } 5. //½«¾ØÕóm(n,n)¶Ô½ÇÏßÉϵÄÔªËØÖÃΪ1£¬ÆäÓàÔªËØÖÃΪ0¡£ #include int i,j; int m[n][n]={1,99,2,76,3,90,4,88,66}; for(i=0;i m[i][j]=1; else m[i][j]=0; printf(\ for(i=0;i for(j=0;j printf(\ printf(\ } system(\ return 0; } ʵÑéÆß£¨µÚ7ÕÂʵÑé ʵÑéÄ¿µÄ£º 1£®ÕÆÎÕº¯ÊýµÄ¶¨ÒåºÍʹÓ÷½·¨¡£ 2£®Á˽â²ÎÊý´«µÝ·½Ê½¡£ 3£®ÕÆÎÕ¼òµ¥µÄµÝ¹éËã·¨¡£ ʵÑéÄÚÈÝ£º N! 1. Óú¯Êý¹ý³Ì¼ÆËã ¡ª¡ª¡ª¡ª¡ª¡ª M!(N-M)! 2£®ÅᲨÄÇÆõÊýÁеÄǰÁ½ÏîÊÇ1¡¢1£¬ÒÔºóµÄÿһÏî¶¼ÊÇÆäÏàÁÚǰÁ½ÏîÖ®ºÍ¡£±àдº¯Êý¹ý³ÌÇó: ¢Å ÊýÁÐǰnÏîºÍFS£»¢Æ ǰnÏîµÄƽ¾ùÖµV¡£²¢¾Ín=20¼ÆËã²¢Êä³öFSÓëV¡£ 3£®±àдһ¸öÓÃÌÝÐη¨ÇóÒ»Ôªº¯Êýf(x)ÔÚ¡²a,b¡³ÉÏ»ý·Ö½üËÆÖµµÄº¯Êý¹ý³Ì¡£²¢¾Í f(x)=sin(2x)+x£¬µ±[a,b]=[0,3.14159]¡¢Ð¡Çø¼äÊýn=10ºÍn=20ʱ£¬·Ö±ð¼ÆËã²¢Êä³ö»ý·ÖµÄ½üËÆÖµs1ºÍs2£¬±£Áô3λСÊý¡£(δʵÏÖ) 4£®±àдһ¸öº¯Êý³ÌÐò,Æä¹¦ÄÜÊÇÅж¨Ò»¸öÊýÊÇ·ñÎªËØÊý,ÈôÊÇËØÊýÔòº¯Êý·µ»ØÖµÎª1, Èô²»ÊÇËØÊýÔòº¯Êý·µ»ØÖµÎª0¡£Óô˺¯ÊýÅж¨ÕÒ³ö 100 ÒÔÄÚ×î´óµÄ 3 ¸öËØÊý¡£ 532 5£®±àдº¯Êý³ÌÐò£¬ÓÃÅ£¶Ùµü´ú·¨ÇóÒ»Ôª·½³Ì x+2x-x+x+1=0ÔÚ 0 ¸½½üµÄ½üËÆÖµ¡£ 6£®±àдº¯Êý³ÌÐò£¬¼ÆËãÕýÕûÊý n1¡«n2 Ö®¼äËùÓÐËØÊýÖ®ºÍ¡£ 7£®Óõݹ鷽·¨Çó FibonacciÊýÁÐǰ 20 Ïî¼°ÆäÕâ20ÏîµÄºÍ¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º1. // #include float func(int m,int n) { int i; long int factorial_n=1,factorial_m=1,factorial_nm=1; float solut=0.0; for(i=1;i<=n;i++) factorial_n*=i; for(i=1;i<=m;i++) factorial_m*=i; for(i=1;i<=n-m;i++) factorial_nm*=i; solut= 1.0*factorial_n/(factorial_m*factorial_nm);//×¢ÒâÀ¨ºÅ£¬Èç¹ûûÓУ¬³ýµÄÒâÒå¾Í±äÁË¡£ return solut; } main(){ int m,n; printf(\ scanf(\ printf(\ system(\ } 2. //ÅᲨÄÇÆõÊýÁеÄǰÁ½ÏîÊÇ1¡¢1£¬ÒÔºóµÄÿһÏî¶¼ÊÇÆäÏàÁÚǰÁ½ÏîÖ®ºÍ¡£±àдº¯Êý¹ý³ÌÇó: ¢Å ÊýÁÐǰnÏîºÍFS£»¢Æ ǰnÏîµÄƽ¾ùÖµV¡£²¢¾Ín=20¼ÆËã²¢Êä³öFSÓëV¡£ #include long fib[m] = {1,1}; long sum=0; int i; for(i=2;i fib[i] = fib[i-1]+fib[i-2]; } for(i=0;i sum=sum+fib[i]; } return sum; } float Avg(int n) { float avg=0.0; avg=Fib(n)*1.0/n;//Èç¹û²»³ËÒÔ1.0£¬½á¹û¿ÉÄܲ»¶Ô£¬ÒòΪÕûÊý/ÕûÊý. return avg; } main() { int n; printf(\ scanf(\ printf(\ǰ%dÏîºÍ=%d\\n\ printf(\ǰ%dÏîºÍƽ¾ùÖµ=%f\\n\ system(\ } ǰ20ÏîºÍΪ17710£¬Æ½¾ùֵΪ885.50 3. 4. //±àдһ¸öº¯Êý³ÌÐò,Æä¹¦ÄÜÊÇÅж¨Ò»¸öÊýÊÇ·ñÎªËØÊý,ÈôÊÇËØÊýÔòº¯Êý·µ»ØÖµÎª1, Èô²»ÊÇ ËØÊýÔòº¯Êý·µ»ØÖµÎª0¡£Óô˺¯ÊýÅж¨ÕÒ³ö 100 ÒÔÄÚ×î´óµÄ 3 ¸öËØÊý¡£ #include int prime(int n)//ÅжÏËØÊýµÄº¯Êý { int flag=1,i; for (i=2;i<=sqrt(n)&&flag==1;i++)//for(i=2;i<=sqrt(n)&&flag==1;i++) if(n%i==0) flag=0; return(flag); } main() { int i,j=0,a[100]; for(i=0;i<=100;i++) { if(prime(i))//Èç¹ûÊÇËØÊý£¬Ôò¼ÇÈëÊý×éÖÐ { a[j]=i; j++; } } printf(\ for(i=j-3;i 5. //±àдº¯Êý³ÌÐò£¬ÓÃÅ£¶Ùµü´ú·¨ÇóÒ»Ôª·½³Ì x5+2x3-x2+x+1=0ÔÚ 0 ¸½½üµÄ½üËÆÖµ¡£ #include {//Å£¶Ùµü´ú·¨¹«Ê½Îªx=x0-f(x)/f'(x) float x=0,x0,f,f1; do{ x0=x; f=pow(x0,5)+2*pow(x0,3)-x0*x0+x0+1; f1=5*pow(x0,4)+6*pow(x,2)-2*x0+1; x=x0-f/f1; } while(fabs(x-x0)>1e-5); return x; } main() { printf(\ system(\ } 6. //±àдº¯Êý³ÌÐò£¬¼ÆËãÕýÕûÊý n1¡«n2 Ö®¼äËùÓÐËØÊýÖ®ºÍ¡£ #include int prime(int n)//ÅжÏËØÊýµÄº¯Êý { int flag=1,i; for (i=2;i<=sqrt(n)&&flag==1;i++)//for(i=2;i<=sqrt(n)&&flag==1;i++) if(n%i==0) flag=0; return(flag); } main() { int i,n1,n2,sum; printf(\ scanf(\ for(i=n1;i<=n2;i++) { if(prime(i))//Èç¹ûÊÇËØÊý£¬Ôò¼Óµ½ºÍÀï sum=sum+i; } printf(\ system(\ } 7. //Óõݹ鷽·¨Çó FibonacciÊýÁÐǰ 20 Ïî¼°ÆäÕâ20ÏîµÄºÍ¡£ #include fib=Fib(n-1)+Fib(n-2); return fib; } int main() { int i; long sum=0; for(i=0;i<20;i++) sum=sum+Fib(i); printf(\ system(\ return 0; } ʵÑéÆß£¨µÚ¾ÅÕÂʵÑ飩´ËʵÑé²»×ö ʵÑéÄ¿µÄ£º 1. ÕÆÎÕÎ޲κʹø²ÎºêµÄ¶¨ÒåºÍºêÌæ»»·½·¨¡£ 2. ÕÆÎÕÎļþ°üº¬´¦Àí·½·¨¡£ ʵÑéÄÚÈÝ£º 1. Éè¼ÆÒ»¸öÅÐ¶ÏÆæÊýµÄ´ø²Îºê¡£ÔÚÖ÷º¯ÊýÖÐÁ¬Ðø¶ÁÈ¡ÕûÊý£¬Ö±µ½ÊäÈëµÄÕûÊýÊÇÆæÊýʱ ÖÐÖ¹³ÌÐòÔËÐС£ 2. Óôø²ÎÊýµÄºêʵÏÖÇóÁ½¸öÊýµÄ×î´óÖµ¹¦ÄÜ£¬ÔÙÀûÓÃÉÏÊöµÄ´ø²ÎºêÉè¼ÆÒ»¸öÇóÈý¸öÊý ÖÐ×î´óÊýµÄ´ø²Îºê¡£ÔÚÖ÷º¯ÊýÖÐÇóÏÂÁÐÐÎʽÊý¾ÝÖеÄ×î´óÖµ£º (1) (a,b) £¨2) (a,b,c) (3) (a-2,b+2) 4) (a-2,b,c+2) 3. ÊäÈëÁ½¸öÕûÊý£¬ÇóËüÃÇÏà³ýµÄÓàÊý¡£Óôø²ÎµÄºêÀ´ÊµÏÖ£¬²¢Ð´Ö÷º¯Êýµ÷Óúꡣ 4. ¸øÄê·Ýyear¶¨ÒåÒ»¸öºê£¬ÒÔÅбð¸ÃÄê·ÝÊÇ·ñÈòÄ꣬²¢Ð´Ö÷º¯Êýµ÷Óúꡣ 5. Èý½ÇÐεÄÃæ»ýΪ£º area?s(s?a)(s?b)(s?c)£¬ÆäÖУ¬ s?1(a?b?c)2£¬a£¬ b£¬cΪÈý½ÇÐεÄÈý±ß¡£¶¨ÒåÁ½¸ö´ø²ÎµÄºê¶¨Ò壬һ¸öÓÃÀ´Çós£¬ÁíÒ»¸öÓÃÀ´Çóarea£¬ ÔÚ³ÌÐòÖÐÓôøÊµ²ÎµÄºêÃûÀ´ÇóÃæ»ýarea¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º1. #include #define odd(a) (a%2==0) main() { int a,b,c; printf(\ scanf(\ while(odd(a)) { scanf(\ } system(\ } 2. #include #define MAX(a,b) ((a)>(b)?(a):(b)) main() { int a,b,c; printf(\ scanf(\ printf(\ system(\ } 3. ¼û×÷Òµ9.2 4. ¼û×÷Òµ9.4 5. ¼û×÷Òµ9.3 ʵÑé°Ë£¨µÚ8ÕÂʵÑéÒ»£© ʵÑéÄ¿µÄ£º 1. ͨ¹ýʵÑé½øÒ»²½ÕÆÎÕÖ¸ÕëµÄ¸ÅÄ»á¶¨ÒåºÍʹÓÃÖ¸Õë±äÁ¿¡£ 2. ÕÆÎÕÖ¸Ïò±äÁ¿µÄÖ¸Õë±äÁ¿µÄʹÓ÷½·¨¡£ 3. ÕÆÎÕÖ¸ÏòһάÊý×éµÄÖ¸Õë±äÁ¿À´´¦ÀíÊý×éÔªËØ¡£ 4. ÕÆÎÕÖ¸Ïò×Ö·û´®µÄÖ¸Õë±äÁ¿µÄʹÓ÷½·¨¡£ 5. ÕÆÎÕÖ¸Õë×÷Ϊº¯Êý²ÎÊýµÄÓ÷¨¡£ ʵÑéÄÚÈÝ£º 1£®ÓÃÖ¸Õë±äÁ¿°´´ÓСµ½´óµÄ˳ÐòÊä³öÈý¸öÕûÊý¡£ 2£®ÊäÈën£¨²»´óÓÚ20£©¸öµ¥¾«¶ÈÊý´æÈëһάÊý×飬ÓÃÖ¸Õë±äÁ¿´¦ÀíÊý×éÔªËØµÄ·½Ê½½«ÆäÄæÐò´æ·ÅºóÊä³ö¡£n´Ó¼üÅÌÊäÈë¡£ 3£®ÀûÓÃÖ¸ÕëÍê³ÉÁ½¸ö±äÁ¿Öµ»¥»»¡£ 4£®±àдһ¸ö³ÌÐò£¬ÓÃ12¸öÔ·ݵÄÓ¢ÎÄÃû³Æ³õʼ»¯Ò»¸ö×Ö·ûÖ¸ÕëÊý×飬µ±¼ü ÅÌÊäÈëÕûÊýΪ1µ½12 ʱ£¬ÏÔʾÏàÓ¦µÄÔ·ÝÃû£¬¼üÈëÆäËûÕûÊýʱÏÔʾ´íÎóÐÅÏ¢¡£ 5£®ÓÃÑ¡Ôñ·¨¶Ô10¸öÕûÊýÅÅÐò(½µÐò)¡£ 6£®±àÒ»¸ö³ÌÐò£¬´Ó¼üÅÌÉÏÊäÈëÒ»´®·ûºÅ£¨ÒԻسµ¼üΪ½áÊø£©£¬½«ÆäÒÔ×Ö·û´®ÐÎʽ´æÈëһά×Ö·ûÊý×飬ȻºóÔÙÊä³ö¸Ã×Ö·ûÐÍÊý×éÖеÄ×Ö·û´®¡£ 7£®±àдһ¸ö³ÌÐò¼ÆËãÒ»¸ö×Ö·û´®µÄ³¤¶È¡£ 8£®±àдһ¸ö³ÌÐòÇóÒ»¸ö×Ó´®ÔÚÒ»¸ö×Ö·û´®ÖгöÏֵĴÎÊý£¬Èç¹û¸Ã×Ö·û²»³öÏÖÔò·µ»Ø0¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º1.¼û×÷Òµ10.1 2. //ÊäÈën£¨²»´óÓÚ20£©¸öµ¥¾«¶ÈÊý´æÈëһάÊý×飬ÓÃÖ¸Õë±äÁ¿´¦ÀíÊý×éÔªËØµÄ·½Ê½½«ÆäÄæ Ðò´æ·ÅºóÊä³ö¡£n´Ó¼üÅÌÊäÈë¡£ #include int i,n; printf(\ scanf(\ float a[20],t; printf(\ for(i=0;i scanf(\ float *p_s,*p_e; p_s=a;p_e=a+n-1; while(*p_s<*p_e) { t=*p_s; *p_s=*p_e; *p_e=t; } printf(\ for(i=0;i printf(\ system(\ } 3. #include void swap(int *p1, int *p2) { int temp; temp=*p1;*p1=*p2;*p2=temp; } main(){ int a=46,b=-100; int *p_a,*p_b; p_a=&a;p_b=&b; printf(\ swap(p_a,p_b); printf(\ system(\ } 4. //±àдһ¸ö³ÌÐò£¬ÓÃ12¸öÔ·ݵÄÓ¢ÎÄÃû³Æ³õʼ»¯Ò»¸ö×Ö·ûÖ¸ÕëÊý×飬µ±¼ü ÅÌÊäÈëÕûÊýΪ1µ½12 ʱ£¬ÏÔʾÏàÓ¦µÄÔ·ÝÃû£¬¼üÈëÆäËûÕûÊýʱÏÔʾ´íÎóÐÅÏ¢¡£ #include main() { char *month_name[13]={\month\ int n; printf(\ scanf(\ if(n<=12||n>=1) printf(\ else printf(\ system(\ } 5. #include int main() { int i,j,k,t,max; int a[10]={77,99,69,76,87,90,100,88,66,80}; for(i=0;i<10;++i) {//Ñ¡³ö×î´óÖµËùÔÚµÄλÖÃj max=-65536;//¿ÉÊÔÊԴ˾䲻ÔÚÑ»·ÄڵĽá¹û¡£ for(k=i;k<10;k++) { if(*(a+k) >max) { max=*(a+k); j=k; } } if(i!=j) {//½»»» t=*(a+i); *(a+i)=*(a+j); *(a+j)=t; } } for(i=0;i<10;i++) printf(\ system(\ return 0; } 6. //±àÒ»¸ö³ÌÐò£¬´Ó¼üÅÌÉÏÊäÈëÒ»´®·ûºÅ£¨ÒԻسµ¼üΪ½áÊø£©£¬½«ÆäÒÔ×Ö·û´®ÐÎʽ´æÈëһά×Ö·ûÊý×飬ȻºóÔÙÊä³ö¸Ã×Ö·ûÐÍÊý×éÖеÄ×Ö·û´®¡£ #include int main() { char *s; int i,length=0; char ch[100]={}; printf(\ gets(s); length=strlen(s); for(i=0;i for(i=0;i 7. //±àдһ¸ö³ÌÐò¼ÆËãÒ»¸ö×Ö·û´®µÄ³¤¶È¡£ #include main() { char a[20],*p=a; int i=0; printf(\ÇëÊäÈëÒ»¸ö×Ö·û´®£¨1ÖÁ20¸ö£©£º\\n\ gets(a); while(*p++) i++; printf(\ÄãÊäÈëµÄ×Ö·û´®³¤¶ÈÊÇ£º%d\\n\ system(\} 8.//±àдһ¸ö³ÌÐòÇóÒ»¸ö×Ó´®ÔÚÒ»¸ö×Ö·û´®ÖгöÏֵĴÎÊý£¬Èç¹û¸Ã×Ö·û²»³öÏÖÔò·µ»Ø0¡£ #include int index(char *s,char *t,int i) { int j=0; while((i if (s[i]==t[j] ) { ++i; ++j; // Ïàͬ¼ÌÐø±È½Ïºó¼Ì×Ö·û } else { i= i-j+1 ; j = 0; } } if(j>strlen(t)-1) return i-strlen(t);//Æ¥Åä³É¹¦ else return 0;// ʧ°Ü·µ»Ø£° } int Count(char *s,char *t) { int i=0,count=0; do { i=index(s,t,i); printf(\ if(i) { count++; i+=strlen(t); } }while(i); return count; } main() { char s[20],t[20]; char s_a[20],t_a[20]; int i=0,num=0; printf(\ÇëÊäÈëÒ»¸ö×Ö·û´®£¨1ÖÁ20¸ö£©£º\\n\ gets(s); printf(\ÇëÊäÈëÒ»¸ö×Ó´®£¨1ÖÁ20¸ö£©£º\\n\ gets(t); /* for(i=0;i for(i=0;i for(i=1;i<=strlen(t);i++) printf(\ printf(\ printf(\ printf(\ system(\} ʵÑé°Ë£¨µÚ8ÕÂʵÑé¶þ£© ʵÑéÄ¿µÄ£º 1. ÕÆÎÕÖ¸Ïò¶þάÊý×éµÄÖ¸Õë±äÁ¿µÄʹÓᣠ2. ÕÆÎÕÖ¸ÕëÊý×éµÄ¶¨Òå¡¢³õʼ»¯ºÍÒýÓᣠʵÑéÄÚÈÝ£º 1£®ÊäÈë2ÐÐ3ÁеľØÕóÔªËØÖµ£¬´æÈë¶þάÊý×飻ÔÙ°´ÐÐÁиñʽÊä³ö¡£ 2£®ÊäÈëÒ»¸ö3¡Á6µÄ¶þάÕûÊýÊý×飬Êä³öÆäÖÐ×î´óÖµ¡¢×îСֵ¼°ÆäËùÔÚµÄÐÐÁÐϱꡣ 3£®ÉèÓÐ3¸öѧÉú£¬4ÃŹ¦¿Î£¬±àд2¸öº¯Êý·Ö±ðʵÏÖÈçϹ¦ÄÜ£º(1)Çóÿ¸öѧÉúµÄƽ¾ù·Ö£»(2)ÕÒ³öÒ»ÃÅÒÔÉϿγ̲»¼°¸ñµÄѧÉú¡£ 4£®Éè¼ÆÒ»¸öº¯Êý°ÑÁ½¸öÕûÊýÐβÎÖнϴóµÄÄǸöÊýµÄµØÖ·×÷Ϊº¯ÊýÖµ·µ»Ø£¬²¢Ð´Ö÷º¯ÊýʵÏÖµ÷Óᣠ5£®ÊäÈë5¸ö×Ö·û´®£¬´ÓÖÐÕÒ³ö×î´óµÄ×Ö·û´®²¢Êä³ö¡£ÒªÇóÓöþά×Ö·ûÊý×é´æ·ÅÕâ5¸ö×Ö·û´®¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º1.//ÊäÈë2ÐÐ3ÁеľØÕóÔªËØÖµ£¬´æÈë¶þάÊý×飻ÔÙ°´ÐÐÁиñʽÊä³ö¡£ #include main() { int a[M][N]; int i,j; for(i=0;i for(j=0;j printf(\ printf(\ } system(\} 2. //ÊäÈëÒ»¸ö3¡Á6µÄ¶þάÕûÊýÊý×飬Êä³öÆäÖÐ×î´óÖµ¡¢×îСֵ¼°ÆäËùÔÚµÄÐÐÁÐϱꡣ #include main() { int a[M][N]; int i,j; for(i=0;i int max=-32768; int min=32767; int maxrow=0,maxcol=0,minrow=0,mincol=0; for(i=0;i for(j=0;j if(*(a[i]+j)>max) { max=*(a[i]+j); maxrow=i; maxcol=j; } if(*(a[i]+j) min=*(a[i]+j); minrow=i; mincol=j; } } } printf(\ printf(\ system(\} 3. //ÉèÓÐ3¸öѧÉú£¬4ÃŹ¦¿Î£¬±àд2¸öº¯Êý·Ö±ðʵÏÖÈçϹ¦ÄÜ£º //(1)Çóÿ¸öѧÉúµÄƽ¾ù·Ö£»(2)ÕÒ³öÒ»ÃÅÒÔÉϿγ̲»¼°¸ñµÄѧÉú¡£ #include void average(float (*p)[4],float aver[3]); int seek( float (*pnt_row)[4] ); int i; float score[3][4]={{20,67,70,60},{80,87,90,81},{90,99,100,98}}; float aver[3]; average(score,aver); for(i=0;i<3;i++) printf(\ seek(score); system(\} void average(float (*p)[4],float *aver) { int i,j; float sum; for(i=0;i<3;i++) { sum=0.0; for(j=0;j<4;j++) sum=sum+*(*(p+i)+j); aver[i]=sum/4; } } void seek( float (*p)[4] ) { int i,j; float unpass; for(i=0;i<3;i++) for(j=0;j<4;j++) if(*(*(p+i)+j)<60) printf(\ } 4. //Éè¼ÆÒ»¸öº¯Êý°ÑÁ½¸öÕûÊýÐβÎÖнϴóµÄÄǸöÊýµÄµØÖ·×÷Ϊº¯ÊýÖµ·µ»Ø£¬²¢Ð´Ö÷º¯ÊýʵÏÖµ÷Óᣠ#include if(x>y) return &x; else return &y; } main() { int x,y; printf(\ scanf(\ int *p=seek(x,y); printf(\ system(\} 5. //ÊäÈë5¸ö×Ö·û´®£¬´ÓÖÐÕÒ³ö×î´óµÄ×Ö·û´®²¢Êä³ö¡£ÒªÇóÓöþά×Ö·ûÊý×é´æ·ÅÕâ5¸ö×Ö·û´®¡£ #include char a[5][80],*p[5],**q,**max; /*¶¨ÒåÊý×é¡¢Ö¸ÕëÊý×é¶þ¼¶Ö¸Õë±äÁ¿*/ int i; for(i=0;i <5;i++) /*ÈÃÖ¸ÕëÊý×éÔªËØp[i]Ö¸Ïò×Ö·ûÊý×éaµÄµÚiÐÐ*/ p[i]=a[i];/*×¢Òâa[i]²»ÊÇÊý×éÔªËØ£¬¶øÊǵÚiÐеÄÊ×µØÖ·*/ for(i=0;i <5;i++)/*ÊäÈë5¸ö×Ö·û´®´æÈë×Ö·ûÊý×éa*/ gets(p[i]); max=&p[0]; /*É赱ǰ×î´ó×Ö·û´®ÊÇ×Ö·û×éÖеÚ1ÐÐ*/ q=&p[1]; /*Èöþ¼¶Ö¸Õë±äÁ¿qÖ¸ÏòÖ¸ÕëÊý×éµÚ2ÐÐ*/ for(i=1;i <5;i++,q++) if(strcmp(*max,*q) <0)max=q;/*Èç¹ûµ±Ç°×î´ó×Ö·û´®Ð¡ÓÚ¶þ¼¶Ö¸ÕëqÖ¸ÏòµÄÖ¸Õë*/ /*Êý×éÔªËØÖ¸ÏòµÄ×Ö·û´®,ÔòÖØÐ¼Ç¼×î´ó×Ö·û´®*/ puts(*max);/*Êä³ö×î´ó×Ö·û*/ system(\ } ʵÑé¾Å£¨µÚ9ÕÂʵÑ飩 ʵÑéÄ¿µÄ£º 1. ÕÆÎսṹÐÍ¡¢½á¹¹ÐͱäÁ¿µÄ¶¨ÒåºÍʹÓ÷½·¨¡£ 2. ÕÆÎսṹÐÍÊý×éµÄ¶¨ÒåºÍʹÓ÷½·¨¡£ 3. Á˽âÖ¸Ïò½á¹¹ÐÍÊý¾ÝµÄÖ¸Õë±äÁ¿µÄ¶¨ÒåºÍʹÓᣠʵÑéÄÚÈÝ£º 1. ÉèÓÐѧÉúÐÅÏ¢ÈçÏ£ºÑ§ºÅ£¨³¤ÕûÐÍ£©¡¢ÐÕÃû£¨×Ö·û´®ÐÍ£©¡¢ÄêÁ䣨ÕûÐÍ£©¡¢¿Î³Ì1³É ¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì2³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì3³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì4³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì5³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì6³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì7³É¼¨£¨ÊµÐÍ£©¡¢×Ü·Ö£¨ÊµÐÍ£©¡¢Æ½¾ù·Ö£¨ÊµÐÍ£©¡£ÊÔ±àд³ÌÐò£¬ÊäÈë3¸öѧÉúµÄÉÏÊöÐÅÏ¢£¬¼ÆËãÿ¸öѧÉúµÄ×Ü·Ö¡¢Æ½¾ù·Ö£¬È»ºóÊä³öÿ¸öѧÉúѧºÅ¡¢ÐÕÃû¡¢×Ü·Ö¡¢Æ½¾ù·Ö¡£ 2. ÉèÓÐѧÉúÐÅÏ¢ÈçÏ£ºÑ§ºÅ£¨³¤ÕûÐÍ£©¡¢ÐÕÃû£¨×Ö·û´®ÐÍ£©¡¢³öÉúÄêÔ£¨ÆäÖк¬ÓÐÄê·Ý¡¢ Ô·ݡ¢ÈÕ£¬¾ùΪÕûÐÍ£©¡£ÊÔ±àд³ÌÐò£¬ÊäÈë5¸öѧÉúµÄÉÏÊöÐÅÏ¢£¬Êä³öËùÓÐѧÉúµÄѧºÅ¡¢ÐÕÃûºÍÄêÁä¡£ 3. °´¡°Äê/ÔÂ/ÈÕ¡±¸ñʽÊä³öϵͳÈÕÆÚ£¬°´¡°Ê±£º·Ö£ºÃë.XX¡±¸ñʽÊä³öϵͳʱ¼ä¡£ 4. ÉèÓÐÈô¸É¸öÈËÔ±µÄÊý¾Ý£¬ÆäÖÐÓÐѧÉúºÍ½Ìʦ¡£Ñ§ÉúµÄÊý¾ÝÖаüÀ¨£ºÐÕÃû¡¢ºÅÂë¡¢ÐÔ ±ð¡¢Ö°Òµ¡¢°à¼¶¡£½ÌʦµÄÊý¾Ý°üÀ¨£ºÐÕÃû¡¢ºÅÂë¡¢ÐÔ±ð¡¢Ö°Òµ¡¢Ö°Îñ¡£ÒªÇóÊäÈëÈËÔ±µÄÊý¾Ý£¬È»ºóÔÙÊä³ö¡£ 5. ÒÑÖª3¸öѧÉúµÄѧºÅ¡¢ÐÕÃû¡¢ÐÔ±ð¼°ÄêÁ䣬ҪÇóͨ¹ýÖ±½Ó¸³ÖµµÄ·½Ê½½«Êý¾ÝË͸øÄ³ ½á¹¹Ìå±äÁ¿£¬È»ºóÔÙÊä³ö¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º1. //ÓÐѧÉúÐÅÏ¢ÈçÏ£ºÑ§ºÅ£¨³¤ÕûÐÍ£©¡¢ÐÕÃû£¨×Ö·û´®ÐÍ£©¡¢ÄêÁ䣨ÕûÐÍ£©¡¢¿Î³Ì1³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì2³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì3³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì4³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì5³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì6³É¼¨£¨ÊµÐÍ£©¡¢¿Î³Ì6³É¼¨£¨ÊµÐÍ£©¡¢×Ü·Ö£¨ÊµÐÍ£©¡¢Æ½¾ù·Ö£¨ÊµÐÍ£©¡£ÊÔ±àд³ÌÐò£¬ÊäÈë3¸öѧÉúµÄÉÏÊöÐÅÏ¢£¬¼ÆËãÿ¸öѧÉúµÄ×Ü·Ö¡¢Æ½¾ù·Ö£¬È»ºóÊä³öÿ¸öѧÉúѧºÅ¡¢ÐÕÃû¡¢×Ü·Ö¡¢Æ½¾ù·Ö¡£ #include struct student{ long no; char name[10]; int age; float course1; float course2; float course3; float course4; float course5; float course6; float course7; float total; float avg; }; main() { int i; struct student s[3]; for(i=0;i<3;i++) { printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ s[i].total=s[i].course1+s[i].course2+s[i].course3+s[i].course4+s[i].course5+s[i].course6+s[i].course7; s[i].avg=s[i].total/7.0; } for(i=0;i<3;i++) printf(\,s[i].age,s[i].course1,s[i].course2,s[i].course3,s[i].course4,s[i].course5,s[i].course6,s[i].course7,s[i].total,s[i].avg); system(\} 2. //ÉèÓÐѧÉúÐÅÏ¢ÈçÏ£ºÑ§ºÅ£¨³¤ÕûÐÍ£©¡¢ÐÕÃû£¨×Ö·û´®ÐÍ£©¡¢³öÉúÄêÔ£¨ÆäÖк¬ÓÐÄê·Ý¡¢Ô·ݡ¢ÈÕ£¬¾ùΪÕûÐÍ£©¡£ //ÊÔ±àд³ÌÐò£¬ÊäÈë5¸öѧÉúµÄÉÏÊöÐÅÏ¢£¬Êä³öËùÓÐѧÉúµÄѧºÅ¡¢ÐÕÃûºÍÄêÁä¡£ #include struct student{ long no; char name[10]; Date birthday; }; main() { int i; struct student s[5]; //ȡϵͳʱ¼äÖеÄÄê·ÝÐÅÏ¢ time_t rawtime; struct tm *info; int year,month; time ( &rawtime ); info = localtime ( &rawtime ); year =info->tm_year + 1900; month =info->tm_mon + 1; //---------------------------- for(i=0;i<5;i++) { printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i<5;i++) printf(\ system(\} 3. //°´\Äê/ÔÂ/ÈÕ\¸ñʽÊä³öϵͳÈÕÆÚ£¬°´\ʱ£º·Ö£ºÃë.XX\¸ñʽÊä³öϵͳʱ¼ä¡£ #include int i; time_t now; time(&now); struct Date today; struct tm *tmpointer; tmpointer=localtime(&now); /*¿ÉÒÔÓÃasctime(tmpointer)À´×ª»»³É×Ö·û´®ÐÎʽ*/ // printf(\er->tm_year+1900,tmpointer->tm_hour,tmpointer->tm_min,tmpointer->tm_sec); today.year=tmpointer->tm_year+1900; today.month=tmpointer->tm_mon+1; today.day=tmpointer->tm_mday; printf(\ today.hour=tmpointer->tm_hour; today.minute=tmpointer->tm_min; today.second=tmpointer->tm_sec; if(today.hour>12) printf(\ else printf(\ system(\} 4.¼û½Ì²Ä311Ò³Àý11.12 5. #include char sex; int age; }; main() { int i; struct student s[3]; for(i=0;i<3;i++) { printf(\ scanf(\ printf(\ scanf(\ getchar(); printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i<3;i++) printf(\ system(\} ʵÑéÊ®£¨µÚ10ÕÂʵÑ飩 ʵÑéÄ¿µÄ£º 1£®ÕÆÎÕÎļþµÄ´ò¿ª¡¢¹Ø±ÕºÍ¶Áд²Ù×÷¡£ 2£®ÕÆÎÕÎļþµÄ˳Ðò·ÃÎʺÍËæ»ú·ÃÎÊ¡£ ʵÑéÄÚÈÝ£º 1£®ÀûÓÃÎı¾±à¼Èí¼þÔÚ´ÅÅÌÉϽ¨Á¢Ò»¸öÓÐn¸öѧÉúµÄѧºÅ¡¢ÐÕÃû¼°Ó¢Óï¡¢ÊýѧºÍ¼ÆËã»úÈýÃſγ̳ɼ¨µÄÊý¾ÝÎļþ¡£ 2£®±àд³ÌÐò½«µÚ1Ì⽨Á¢µÄÊý¾ÝÎļþ¶ÁÈëÇÒÇó³öÿ¸öѧÉúµÄƽ¾ù³É¼¨¡£ 3£®Óö¨Òå½á¹¹ÀàÐ͵ķ½·¨£¬±àд³ÌÐò½¨Á¢Ò»¸ö¾ßÓÐѧÉúѧºÅ¡¢ÐÕÃû¡¢×Ü·ÖºÍÁªÏµµç»°µÄ¼Ç¼Îļþ¡£ 4£®±àд³ÌÐò£¬ÀûÓõÚ3Ì⽨Á¢µÄ¼Ç¼Îļþ£¬´Ó¼üÅÌÉÏÊäÈëÒ»¸öѧºÅ£¬¿ÉÒÔ²éѰµ½´ËÈËÆäËûÐÅÏ¢¡£ 5£®±àд³ÌÐò£¬½«µÚËÄÌ⽨Á¢µÄÎļþ¸´ÖÆÒ»·Ý¡£ 6£®ÓòúÉúËæ»úÊýµÄ·½·¨²úÉú£º100¸öÉ̳¡µÄÐòºÅ£¨1µ½500Ö®¼ä£©¡¢Ã¿¸öÉ̳¡Ò»ÄêËĸö¼¾¶Èÿ¸ö¼¾¶ÈµÄÏúÊÛ½ð¶î£¨µ¥Î»ÍòÔª£©£¬½«ÕâЩÊý¾Ý´æÓÚÊý¾ÝÎļþ£¬È»ºóÀûÓøÃÎļþÇó³öÿ¸öÉ̳¡Ò»ÄêµÄÏúÊÛ×ܽð¶î¡£ ʵÑé¹ý³Ì£º ʵÑé½á¹û£º1. //ÀûÓÃÎı¾±à¼Èí¼þÔÚ´ÅÅÌÉϽ¨Á¢Ò»¸öÓÐn¸öѧÉúµÄѧºÅ¡¢ÐÕÃû¼°Ó¢Óï¡¢ÊýѧºÍ¼ÆËã»úÈýÃſγ̳ɼ¨µÄÊý¾ÝÎļþ¡£ #include char name[10]; int english; int math; int computer; }; main() { int i,n; struct student s[m]; printf(\ scanf(\ for(i=0;i printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i printf(\ FILE *fp; if((fp=fopen(\ { printf(\ exit(0); } for(i=0;i fwrite(&s[i],sizeof(struct student),1,fp);//дÈëÎļþºó¿´ÊÇÂÒÂë fclose(fp); FILE *fp1;//°ÑдÈëÎļþµÄÊý¾ÝÔٴζÁ³öÀ´ if((fp1=fopen(\ { printf(\ exit(0); } for(i=0;i fread(&s[i],sizeof(struct student),1,fp1); for(i=0;i printf(\ fclose(fp1); system(\} 2. //±àд³ÌÐò½«µÚ1Ì⽨Á¢µÄÊý¾ÝÎļþ¶ÁÈëÇÒÇó³öÿ¸öѧÉúµÄƽ¾ù³É¼¨¡£ #include char name[10]; int english; int math; int computer; }; main() { int i,n; struct student s[m]; printf(\ scanf(\/* for(i=0;i printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i printf(\ FILE *fp; if((fp=fopen(\ { printf(\ exit(0); } for(i=0;i fwrite(&s[i],sizeof(struct student),1,fp);//дÈëÎļþºó¿´ÊÇÂÒÂë fclose(fp);*/ FILE *fp1;//°ÑдÈëÎļþµÄÊý¾ÝÔٴζÁ³öÀ´ if((fp1=fopen(\ { printf(\ exit(0); } for(i=0;i fread(&s[i],sizeof(struct student),1,fp1); for(i=0;i printf(\ fclose(fp1); system(\} 3. //Óö¨Òå½á¹¹ÀàÐ͵ķ½·¨£¬±àд³ÌÐò½¨Á¢Ò»¸ö¾ßÓÐѧÉúѧºÅ¡¢ÐÕÃû¡¢×Ü·ÖºÍÁªÏµµç»°µÄ¼Ç¼Îļþ¡£ #include char name[10]; int score; long telephone; }; main() { int i,n; struct student s[m]; printf(\ scanf(\ for(i=0;i printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i printf(\ FILE *fp; if((fp=fopen(\ { printf(\ exit(0); } for(i=0;i fwrite(&s[i],sizeof(struct student),1,fp);//дÈëÎļþºó¿´ÊÇÂÒÂë fclose(fp); system(\} 4. //±àд³ÌÐò£¬ÀûÓõÚ3Ì⽨Á¢µÄ¼Ç¼Îļþ£¬´Ó¼üÅÌÉÏÊäÈëÒ»¸öѧºÅ£¬¿ÉÒÔ²éѰµ½´ËÈËÆäËûÐÅÏ¢¡£ #include char name[10]; int score; long telephone; }; main() { int i,n; struct student s[m]; printf(\ scanf(\/* for(i=0;i printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i printf(\ FILE *fp; if((fp=fopen(\ { printf(\ exit(0); } for(i=0;i fwrite(&s[i],sizeof(struct student),1,fp);//дÈëÎļþºó¿´ÊÇÂÒÂë fclose(fp);*/ FILE *fp1;//°ÑдÈëÎļþµÄÊý¾ÝÔٴζÁ³öÀ´ if((fp1=fopen(\ { printf(\ exit(0); } for(i=0;i fread(&s[i],sizeof(struct student),1,fp1); int no; printf(\ scanf(\ for(i=0;i if(s[i].no==no) printf(\ } fclose(fp1); system(\} 5. //±àд³ÌÐò£¬½«µÚËÄÌ⽨Á¢µÄÎļþ¸´ÖÆÒ»·Ý¡£ #include char name[10]; int score; long telephone; }; main() { int i,n; struct student s[m]; printf(\ scanf(\/* for(i=0;i printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ printf(\ scanf(\ } for(i=0;i printf(\ FILE *fp;//ÓÃÓÚ¸´ÖÆÎļþ£¬¼´´ÓÔʼÎļþÖжÁ³öºóÔÙдÈëfp if((fp=fopen(\ { printf(\ exit(0); } // for(i=0;i // fwrite(&s[i],sizeof(struct student),1,fp);//дÈëÎļþºó¿´ÊÇÂÒÂë FILE *fp1;//ÓÃÓÚ¶Á³örecord.txt Îļþ¡£ if((fp1=fopen(\ { printf(\ exit(0); } for(i=0;i { fread(&s[i],sizeof(struct student),1,fp1); fwrite(&s[i],sizeof(struct student),1,fp); } fclose(fp); fclose(fp1); system(\} 6. //ÓòúÉúËæ»úÊýµÄ·½·¨²úÉú£º100¸öÉ̳¡µÄÐòºÅ£¨1µ½500Ö®¼ä£©¡¢Ã¿¸öÉ̳¡Ò»ÄêËĸö¼¾¶Èÿ¸ö¼¾¶ÈµÄÏúÊÛ½ð¶î£¨µ¥Î»ÍòÔª£©£¬ //½«ÕâЩÊý¾Ý´æÓÚÊý¾ÝÎļþ£¬È»ºóÀûÓøÃÎļþÇó³öÿ¸öÉ̳¡Ò»ÄêµÄÏúÊÛ×ܽð¶î¡£ #include long quarter1; long quarter2; long quarter3; long quarter4; }; main() { int i; struct market m[101]; /*time_t t; srand((unsigned) time(&t)); for (i=1; i<=100; i++) { m[i].no=rand()P0; m[i].quarter1=rand()0; m[i].quarter2=rand()0; m[i].quarter3=rand()0; m[i].quarter4=rand()0; } FILE *fp; if((fp=fopen(\ { printf(\ exit(0); } for(i=1;i<=100;i++) fwrite(&m[i],sizeof(struct market),1,fp);//дÈëÎļþºó¿´ÊÇÂÒÂë fclose(fp);*/ FILE *fp1; if((fp1=fopen(\ { printf(\ exit(0); } for (i=1; i<=100; i++) { fread(&m[i],sizeof(struct market),1,fp1); printf(\Íò)\\n\r2,m[i].quarter3,m[i].quarter4,(m[i].quarter1+m[i].quarter2+m[i].quarter3+m[i].quarter4)/4.0); } system(\}