C语言程序设计精编教程 教学课件 ppt 作者 陈正权 岳睿 第10章 文件

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4、fclose,1 fclose;,򷵻0򣬷0,1_ AC BC,洢 CFILE fp; fp DCASCII洢,C,2򽫴bi.dat FILE *fp; main() char ch; if (fp=fopen(_)=NULL) exit(0); while(ch=getchar()!=) fputc(ch,fp); fclose(fp); ,bi.dat,w, : 塢 򿪡 ,.(fputc()fgetc() 1.fputc : fputc(chfp) : chfp : 򷵻 򷵻EOF(-1),10.4

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8、if(i=-1L) printf(errorn);, fopen() fclose() fseek() rewind() ftell() feof() , fgetc(),getc() fputc(),putc() fgets() fputs() fread() fwrite() fscanf() fprintf() , ,1C A), B), C) D),C,2void main() FILE *f; f=fopen(filea.txt,w); fprintf(f,abc); fclose(f); filea.txt:hello,filea.txt A)helloabc B)abclo C)

9、abc D)abchello,C,(3) #include void main() FILE *fp; int a10=1,2,3,i,n; fp=fopen(dl.dat,w); for(i=0;i3;i+) fprintf(fp,%d,ai); fprintf(fp,n); fclose(fp); fp=fopen(dl.dat,r); fscanf(fp,%d, A)12300 B) 123 C) 1 D) 321,B,4filea.dat main() FILE *fp; char ch; fp=fopen(15); ch=fgetc(fp); whlie(!feof(fp) putchar(ch); ch=fgetc(fp); putchar(n); fclose(fp); ,file.dat, r,(5)򿪡 int max(int a,int b); main() FILE *fp; if(fp=fopen()=13) printf(!n); else printf(򿪳!n);,NULL,