浇浇水，发表下感想.太丑了。

http://www.cplusplus.com/reference/istream/istream/seekg/?kw=seekg


The istream object (*this).

Errors are signaled by modifying the internal state flags:
flagerror
eofbit-
failbitEither the construction of sentry failed, or the internal call to pubseekpos (1) or pubseekoff (2) failed (i.e., either function returned -1).
badbitAnother error occurred on the stream (such as when the function catches an exception thrown by an internal operation).
When set, the integrity of the stream may have been affected.
Multiple flags may be set by a single operation.

If the operation sets an internal state flag that was registered with member exceptions, the function throws an exception of member type failure.

估计所有码农用这个seek从来都不检查返回值得。

在本版吐槽一下cxx是可以的吧?

【 在 z16166 的大作中提到: 】
: 这跟楼主的问题有关？  
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修改:txgx FROM 115.52.187.*
FROM 115.52.187.*