save project

diy1.py

+c=int(input("请输入长度："))
+b=input("请输入单位:")
+if b=="英寸" or b=="in":
+    a=c/2.54
+    print(c,"英寸","是",a,"厘米")
+elif b=="厘米" or b=="cm":
+    a=c*2.54
+    print(c,"厘米","是",a,"英寸")
+else:
+    print("请输入有效答案")
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