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我注意到两个方法返回一个文件的开头fseek vs倒带?
FILE *fp = fopen("test.bin", "r")
fseek(fp, 0, SEEK_END);
rewind(fp);
和
FILE *fp = fopen("test.bin", "r")
fseek(fp, 0, SEEK_END);
fseek(fp, 0, SEEK_SET);
会是怎样的区别,如果这些方法之间?