结果VC6报错
Copyright (C) Microsoft Corp 1984-1998. All rights reserved.
localtime.cpp
localtime.cpp(7) : error C2039: 'time_t' : is not a member of 'std'
localtime.cpp(7) : error C2868: 'time_t' : illegal syntax for using-declaration; expected qualified-name
localtime.cpp(8) : error C2039: 'time' : is not a member of 'std'
localtime.cpp(8) : error C2873: 'time' : symbol cannot be used in a using-declaration
localtime.cpp(9) : error C2039: 'localtime' : is not a member of 'std'
localtime.cpp(9) : error C2873: 'localtime' : symbol cannot be used in a using-declaration
localtime.cpp(10) : error C2039: 'asctime' : is not a member of 'std'
localtime.cpp(10) : error C2873: 'asctime' : symbol cannot be used in a using-declaration
Process completed, Exit Code 2.
Execution time: 00:02.273
然后把关于时间的标准库给改了。直接用
就OK了。
实际上很多C++的std如果出现上面的问题，都是这个原因。