作业帮if ((fp==fopen(filename,"w"))==NULL) 改为 if ((fp=fopen(filena
if ((fp==fopen(filename,"w"))==NULL) 改为 if ((fp=fopen(filena
代码if((fp=fopen(filename,"r"))==NULL) { fprintf(stderr,"Error
if ((fp=fopen("student.bin","wb"))==NULL)
if((fp=fopen("date.txt","w"))==NULL) { printf("File open err
if(fp = fopen("bank_txt","w") == NULL) { printf("can not ope
fp=fopen(p,
fp=fopen("DATA_KEHU",
if((fp=fopen("d=\\jrzh\\example\\stu-list","wb+"))==NULL)中的N
if ((fp=fopen("date.txt","r"))==NULL)是什么意思?
if((fp=fopen("text.txt","ab+"))==NULL)其中ab+啥意思
fp=fopen("e:\\subjectsdel.txt","w"))==NULL是什么意思
fp=fopen("SAVE.txt","rb"))==NULL