我真的不明白为什么c#编译器允许一些无用的语句,但不允许其他一些无用的语句.
static void Main()
{
string('a',1); // useless but allowed
//"a";// useless and disallowed
new int(); // useless but allowed
//0;// useless and disallowed
new char(); // useless but allowed
//'\0';// useless and disallowed
new bool(); // useless but allowed
//false;// useless and disallowed
//new int[] { 1,2 };// useless and disallowed
//new [] { 1,2 };// useless and disallowed
//new int[2];// useless and disallowed
//new int[2].Length;// useless and disallowed
int[] var = new int[2]; // useful
//var.Length;// useless and disallowed
string s = string.Empty; // useful
//string.Empty;// useless and disallowed
}
