# include <iostream.h> void main() { cout<<"sizeof(char)=" <<sizeof(char)<<endl <<"sizeof(int)=" <<sizeof(int)<<endl <<"sizeof(unsigned)=" <<sizeof(unsigned int)=<<endl <<"sizeof(long)=" <<sizeof(long int)<<endl; } -------------------Configuration: 1 - Win32 Debug-------------------- Compiling... 1.cpp G:\c++练习区\1\1.cpp(9) : error C2059: syntax error : '<<' Error executing cl.exe.

1.exe - 1 error(s), 0 warning(s) 该怎么改啊？