有以下程序：#include <stdio.h>main(){　FILE *fp;　int i,a[6]={1,2,3,

第1题

有下列程序: include main() { FILE *fp; int a[10]={1,2,3},i,n;有下列程序： #include ＜stdio.h＞ main() { FILE *fp; int a[10]={1,2,3},i,n; fp=fopen("d1.dat","w"); for(i=0;i＜3;i++) fprintf(fp,"%d",a[i]); fprintf(fp,"\n"); fclose(fp); fp=open("d1.dat","r"); fscanf(fp,"%d",&n); fclose(fp); prinff("%d\n",n); 程序的运行结果是( )。A．12300B．123C．1D．321

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第2题

有以下程序:include main(){FILE*fp;int i,k,n; fp=fopen("data.dar","w＋");for(i=1;i有以下程序： #include ＜stdio.h＞ main() { FILE *fp; int i,k,n; fp=fopen("data.dar","w+"); for(i=1;i＜6;i++) { fprintf(fp,"%d ",i); if(i%3==0) fprintf(fp,"\n"); } rewind(fp); fscanf(fp,"%d%d",&k,&n); printf("%d%d\n",k,n); fclose(fp); } 程序运行后的输出结果是( )。A．0 0B．123 45C．1 4D．1 2

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第3题

有以下程序 include main() { FILE *fp; int' a[10]={1,2,3,0,0},i;有以下程序 #include ＜stdio.h＞ main() { FILE *fp; int' a[10]={1,2,3,0,0},i; fp = fopen("d2.dat", "wb"); fwrite(a, sizeof(int), 5, fp); fwrite(a, sizeof(int), 5, fp); fclose(fp); fp = fopenCd2.dat", "rb"); fread(a, sizeof(int), 10, fp); fclose(fp); for (i=0; i＜10; i++) printf("%d,", a[i]); }A．1,2,3,0,0,0,0,0,0,0,B．1,2,3,1,2,3,0,0,0,0,C．123,0,0,0,0,123,0,0,0,0,D．1,2,3,0,0,1,2,3,0,0,

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第4题

有以下程序include main(){FILE *fp;int i=20,j=30,k,n;fp=fopen("d1.dat","w");fprin有以下程序 #include ＜stdio.h＞ main() { FILE *fp; int i=20,j=30,k,n; fp=fopen("d1.dat","w"); fprintf(fp,"%d\n",i);fprintf(fp,"%d\n",j); fclose(fp); fp=fopen("d1.dat", "r"); fp=fscanf(fp,"%d%d",&k,&n); printf("%d%d\n",k,n); fclose(fp); } 程序运行后的输出结果是A．20 30B．20 50C．30 50D．3020

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第5题

有以下程序:include main( ){FILE * fp; int i,k,n;fp = fopen( "data. dat" ,"w ＋" )有以下程序:#include ＜stdlo.h＞main( ){ FILE * fp; int i,k,n; fp = fopen( "data. dat" ,"w +" ) for(i = 1 ;i＜6;i ++ ) { fprintf(fp."% d",i); if(i%3 ==0)fprintf(fp," \n"); } rewind(fp); fscanf(fp." % d% d" ,&k, &n) ;printf(" % d%d \n" ,k,n); fclose(fp);A．0 0B．123 45C．1 4D．1

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第6题

有以下程序: include main() {FILE *fp; int i,k,n; fp=fopen("data有以下程序： #include ＜stdio.h＞ main() {FILE *fp； int i，k，n； fp=fopen("data.dat"，"w+")； for(i=1；i＜6；i++) {fprintf(fp,"%d ",i)； if(i%3＝=0) fprintf(fp,"\n")； } rewind(fp)； fscanf(fp，"%d%d"，&k，&n)； printf("%d %d\n"，k，n)； fclose(fp)； } 程序运行后的输出结果是 ______。A．0 0B．123 45C．1 4D．1 2

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第7题

有以下程序:include main()FILE *fp; int i,k=0,n=0;fp=fopen("d1.dat","w");for(i=l有以下程序： #include ＜stdio.h＞ main() FILE *fp; int i, k=0, n=0; fp=fopen("d1.dat","w"); for(i=l;i＜4;i++) fprintf(fp,"%d",i); fclose(fp); fp=fopen("d1.dat","r"); fscanf(fp,'%d%d",&k,&n); printf("%d %d\n", k, n); fclose(fp); 执行后输出结果是A．1 2B．123 0C．1 23D．0 0

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