以只读方式打开一个已存在的文本文件ab.txt，以下选项中正确的是______。A. FILE *fp;fp=fopen("ab.txt","a");B. FILE *fp;fp=fopen("ab.txt","w");C. FILE *fp;fp=fopen("ab.txt","r");D. FILE *fp;fp=fopen("ab.txt","rb+");
A: FILE *fp;fp=fopen("ab.txt","a");
B: FILE *fp;fp=fopen("ab.txt","w");
C: FILE *fp;fp=fopen("ab.txt","r");
D: FILE *fp;fp=fopen("ab.txt","rb+");
A: FILE *fp;fp=fopen("ab.txt","a");
B: FILE *fp;fp=fopen("ab.txt","w");
C: FILE *fp;fp=fopen("ab.txt","r");
D: FILE *fp;fp=fopen("ab.txt","rb+");
举一反三
- 以只读方式打开一个已存在的文件文本ab.txt，以下选项中正确的是_____。 A: FILE *fp, fp=fopen(“ab.txt”,“a”); B: FILE *fp, fp=fopen(“ab.txt”,“w”); C: FILE *fp, fp=fopen(“ab.txt”,“r”); D: FILE *fp, fp=fopen(“ab.txt”,“rb+”);
- 以二进制只读方式打开一个已有的文本文件file1,正确调用fopen函数的方式是() A: FILE*fp;fp=fopen("file1","rb"); B: FILE*fp;fp=fopen("file1","r+"); C: FILE*fp;fp=fopen("file1","r"); D: FILE*fp;fp=fopen("file1","rb+");
- 以只读方式打开一个已有的文本文件file1.txt，下面有关fopen函数正确的调用方式为________。 A: FILE *fp;fp=fopen（"file1.txt","w"）; B: FILE *fp;fp=fopen（"file1.txt","r"）; C: FILE *fp;fp=fopen（"file1.txt","r+"）; D: FILE *fp;fp=fopen（"file1.txt","rb+"）;
- 以只读方式打开一个已存在的文本文件file1.txt，以下选项中正确的是 。 A: FILE *fp;fp=fopen(“file1.txt”,”r+”); B: FILE *fp;fp=fopen(“file1.txt”,”w”); C: FILE *fp;fp=fopen(“file1.txt”,”r”); D: FILE *fp;fp=fopen(“file1.txt”,”a”);
- 读写方式打开一个已有的文本文件“f1.txt”,以下选项中正确的是()。 A: FILE*fp; fp=fopen("f1.txt","r+"); B: FILE*fp; fp=fopen("f1.txt","rb"); C: FILE*fp; fp=fopen("f1.txt","w"); D: FILE*fp; fp=fopen("f1.txt");