有以下程序includemain(){FILE *fp;int i=20,j=30,k,n;fp=fopen("d1.dat","w");fprint 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"); fscanf(fp,"%d%d",k,n);printf("%d%d\n",k,n); fclose(fp);} 程序运行A.20 30B.20 50C.30 50D.30 20
有以下程序includemain(){FILE *fp;int i=20,j=30,k,n;fp=fopen("d1.dat","w");fprint
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"); fscanf(fp,"%d%d",&k,&n);printf("%d%d\n",k,n); fclose(fp);} 程序运行
A.20 30
B.20 50
C.30 50
D.30 20
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有以下程序includemain(){FILE *fp;int i=20,j=30,k,n;fp=fopen("D1v.dat","w");fprin 有以下程序 #include<stdio.h> main() {FILE *fp;int i=20,j=30,k,n; fp=fopen("D1v.dat","w"); fprintf(fp,"%d\n",i);fprintf(fp,"%d\n",j); fclose(fp); fp=fopen("d1.dat","r"); 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.30 20
有以下程序:includemain(){FILE *fp;int i,k=0,n=0;fp=fopen("d1.dat","w");for(i=1;i 有以下程序: #include<stdio.h> main() { FILE *fp; int i,k=0,n=0; fp=fopen("d1.dat","w"); for(i=1;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
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
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
有以下程序:includemain(){FILE*fp;int i,k=0,n=0; fp=fopen("d1.dat","w"); for(i=1; 有以下程序: #include <stdio.h> main() { FILE *fp;int i,k=0,n=0; fp=fopen("d1.dat","w"); for(i=1;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); { 执行后的输出结果是( )。A.1 2B.123 0C.1 23D.0 0
有以下程序includemain(){FILE*fp;int i=20,j=30,k,n;fp=fopen(“d1.dat”,“w”);fprintf 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”); 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.30 20
有以下程序:include main(){FILE *fp;int i,k=0, n=0; fp=fopen("d1.dat","w"); for(i 有以下程序: #include <stdio.h> main() { FILE *fp; int i,k=0, n=0; fp=fopen("d1.dat","w"); for(i=1;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
有以下程序:include main(){FLLE *fp;int i=20,j=30,k,n;fp=fopen("d1.dat""w");fprin 有以下程序: #include <stdio.h> main() {FLLE *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.dar","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.30 20
有以下程序includemain(){ 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"); 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.30 20