字符串: '0' & 0 & \n

day4/d11.cpp

@@ -0,0 +1,11 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    cout << "'0' = " << (int)'0' << endl;
+    cout << 0 << endl;
+    cout << (int)'\0' << endl;
+    return 0;
+}