#include <iostream> #include <string.h> using namespace std; class demo { public: static int i; // 这里不可以初始化非const static变量! static const int j = 1; // 1st place to initiate for const static variable }; int demo::i = 0; // only place to initiate for non-const static variable //const int demo::j = 1; // 2nd place to initiate for const static variable int main() { return 0; }