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c traps and pit falls中文版:p85 [code] struct record rec; FILE *fp; while(fread(&rec, sizeof(rec), 1, fp) == 1){ /*对rec执行某些操作*/ if(/*rec必须被重新写入*/){ fseek(fp, -sizeof(rec), 1);//重新定位到流首 fwrite(&rec, sizeof(rec), 1, fp); fseek(fp, 0L, 1); } } [/code] 书里面就为什么要在fwrite后面加上fseek(fp, 0L, 1)解释到...

by xiaozhu2007 - C/C++ - 2008-04-02 10:49:06 阅读(1154) 回复(0)

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