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");
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");
举一反三
- 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+");
- 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”);
- 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+");
- 打开一个已经存在的非空文本文件,若文件名为stu,则正确的打开语句为() A: FILE*fp; B: fp=fopen("stu.txt","r") C: B.FILE*fp; D: fp=fopen(stu.txt,r) E: C.FILE*fp; F: fP=fopen("stu,txt","wb") G: D.FILE*fp; H: fp=fopen("stu.txt",w