使用c++如何通过LockFile锁定文件的某一部分呢，没找到使用方法呢，能给个例子吗，谢谢哈
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You can refer to Chapter 14, Section 14.3 Record Lock in "Advanced Programming in UNIX Environment" Third Edition
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You can refer to Chapter 14, Section 14.3 Record Lock in "Advanced Programming in UNIX Environment" Third Edition