c语言保存代码怎么写?
希望能简单一点,而且好用
你要保存什么呢?以下是简单的文件备份程序,供参考:
/* Program to create backup of a file */ #include <stdio.h> int main(void) { FILE *in, *out; if ((in = fopen("TESTFILE.DAT", "rt")) == NULL) { fprintf(stderr, "Cannot open input file. "); return 1; } if ((out = fopen("TESTFILE.BAK", "wt")) == NULL) { fprintf(stderr, "Cannot open output file. "); return 1; } while (!feof(in)) fputc(fgetc(in), out); fclose(in); fclose(out); return 0; }
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