String.Format 잘 봐두자 유용하게 쓰인다.

    int a1 = 10;

string b1;

if(a1 == 0)

b1 = "ccc";

else

b1 = "abc";

print (b1);

int a = 0xF0;

int b = 0x0F;

string t1_1 = string.Format("a = {0:D}", a);

print (t1_1);

string t1 = string.Format("a = {0:X2}", a);

string t2 = string.Format("b = {0:X2}", b);

string t3 = string.Format("a|b = {0:X2}", a|b);

print (t1);

print (t2);

print (t3);

print (string.Format("{0:X4}", 1000));

print (string.Format("{0:N}", 10000));

print (string.Format("{0}", 10000));

print(string.Format("{0:D5}", 40));