revise lab8

Author: 蕭皓隆

lab8/solve.py

@@ -1,9 +1,15 @@
 #!/usr/bin/env python3
 
-import angr
-import claripy
+
 import sys
 
+try:
+    import angr
+    import claripy
+except ImportError:
+    print("Please install angr and claripy first.")
+    sys.exit(1)
+
 def main():
     # 創建 angr 專案
     proj = angr.Project('./chal', auto_load_libs=False)