为什么编译出错 Compiling... 错误double.cpp e:\新c++\cpp\错误double.cpp(4) : error C2177: constant too big Error executing cl.exe.

错误double.obj - 1 error(s), 0 warning(s) 程序： #include<iostream.h> void main() { long double a=214444444444444444444444444447483648; cout<<a<<endl; }