非标
此特征是非标准的,且不在标准轨道中。不要在面向 Web 的生产站点中使用它:它不适用于每个用户。实现之间可能存在大的不兼容性,且行为将来可能改变。

摘要

location property is a zero-based index representing the position of the read/write pointer within the file. Its value indicates at which bytes within the file any write or read operation will start.

This value is changed automatically after every read and write operation. The special value null means end-of-file.

This property can be changed at will.

句法

var location = instanceOfLockedFile.location
					

A number.

规范

规范 状态 注释
FileSystem API 编者草案 Draft Proposal.

另请参阅

元数据

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