测试通过：实验二电路

homework2/src/homework2.h

@@ -0,0 +1,19 @@
+#include <reg52.h>
+
+sbit D1 = P2 ^ 7;
+sbit D2 = P2 ^ 6;
+sbit D3 = P2 ^ 5;
+sbit D4 = P2 ^ 4;
+sbit D5 = P2 ^ 3;
+sbit D6 = P2 ^ 2;
+sbit D7 = P2 ^ 1;
+sbit D8 = P2 ^ 0;
+sbit ADDR0 = P1 ^ 0;
+sbit ADDR1 = P1 ^ 1;
+sbit ADDR2 = P1 ^ 2;
+sbit ADDR3 = P1 ^ 3;
+sbit ENLED = P1 ^ 4;
+
+void Delay(unsigned int t){
+	while(t--);
+}

homework2/src/test1.c

@@ -0,0 +1,15 @@
+// 点亮一个小灯泡
+#include <reg52.h>
+#include "homework2.h"
+
+int main()
+{
+    ENLED = 0;
+    ADDR3 = 1;
+    ADDR2 = 1;
+    ADDR1 = 1;
+    ADDR0 = 0;
+    D1    = 0;
+    while (1) {
+    }
+}