auto save

diy1.py

+count=1
+while count<10:
+    print(count)
+    count+=1
+    
\ No newline at end of file

diy2.py

+#使用while循环实现输出2-3+4-5+6...+100的结果
+i=2
+sum=0
+while i<=100:
+    if i%2==0:
+        sum+=i
+    else:
+        sum-=i
+    i+=1
+print("sum:",sum)
\ No newline at end of file