no message

pythonProject/test/7_2.py

@@ -0,0 +1,5 @@
+num = eval(input('请输入幸运数字:'))
+if num<=18:
+    print("呵呵!")
+if not num<=18:
+    print("哈哈！")

pythonProject/test/7_3.py

@@ -0,0 +1,3 @@
+num = eval(input('请输入幸运数字:'))
+if num<=18 or num>100:
+    print("xxx")

pythonProject/test/7_4.py

@@ -0,0 +1,4 @@
+str1 =eval( input('请输入1:'))
+str2 = eval(input('请输入2:'))
+if str1>1 and str2>1:
+    print("xxx")