Added week 6

week6/ex5.py

@@ -0,0 +1,30 @@
+from decimal import Decimal
+#引入decimal模块是因为python不是默认高精浮点数
+
+def main():
+    print('==Exercise 5==')
+    
+    flag=True
+    while flag:
+        a = input("number1=")
+        try: 
+            a = Decimal(a)
+            flag=False
+        except :
+            print("pls input a number!")
+    flag=True
+    while flag:
+        b = input("number2=")
+        try: 
+            b = Decimal(b)
+            flag=False
+        except :
+            print("pls input a number!")
+
+    print(f"The result is {a+b if a*b>Decimal(1000.0) else a*b}")
+
+    print('==End Of Ex5==')
+    return 0
+
+if __name__ == '__main__':
+    main()