ifstream aaa(example.txt);
aaa.seekg(0, ios::end);
// streampos类型其实就是long(定义为typedef long streampos)
streampos sp = aaa.tellg();
long lFileLen = (long)sp; // OK, you have got it.
aaa.seekg(0, ios::end);
// streampos类型其实就是long(定义为typedef long streampos)
streampos sp = aaa.tellg();
long lFileLen = (long)sp; // OK, you have got it.
解决方案 »
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