读取二进制文件的函数调用形式为 :fread(buffer,size,count,fp) , 其中 buffer 代表的是 A) 一个文件指针 , 指向待读取的文件 B) 一个整型变量 , 代表待读取的数据的字节数 C) 一个内存块的首地址 , 代表读入数据存放的地址 D) 一个内存块的字节数
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