运行如下代码会输出（ ）。
int value = 100; void print1() { int value = 50; cout << value << " "; cout << ::value << " ";} void print2() { cout << value << " ";} print1();print2();运行如下代码会输出（ ）。
int value = 100; void print1() { int value = 50; cout << value << " "; cout << ::value << " ";} void print2() { cout << value << " ";} print1();print2();