if(fp1==NULL|| fp2==NULL) ﻩwhile((ch=fgetc(fp1))!=EOF) 20. fp=fopen("source.txt", "r"); ﻩif(fp==NULL) ﻩwhile(ch!=EOF) ﻩprintf("\n大写字符个数=%d\n",count); ﻩfclose(fp); 五.编程一相关知识点: 试题来源: 解析 六.编程二 反馈...
#include#includeint main( ){ int c; FILE *fp1,*fp2; if((fp1=fopen("D:\\A.txt","r"))==NULL) { printf("file error!"); exit(0); } if((fp2=fopen("D:\\B.txt","w"))==NULL) { printf("file error!"); exit(0); } c=fgetc(fp1); while(c!=EOF) { if (c>='0' ...