save project

1.py

+"""
+import random
+a=int(input("请输入成绩:"))
+
+if a>=90:
+    print("学生等级: 优秀")
+elif a>=80:
+    print("学生等级: 良好")
+elif a>=60:
+    print("学生等级: 及格")
+else:
+    print("学生等级: 不及格")
+"""
+"""
+i=0
+while True:
+    i=i+1
+    if i==10:
+        break
+    print(i)
+"""
+"""
+import random
+a=int(input("输入"))
+b=int(input("输入"))
+if a>=b:
+    print("输出", a-b)
+    print("输出", a+b)
+else:
+    print("输出",b-a)
+    print("输出",a+b)
+"""
+"""
+import random
+a=int(input("输入"))
+b=int(input("输入"))
+if a>b:
+    greater=a
+else:
+    greater=b
+while True:
+    if greater%a==0 and greater%b==0:
+        print(greater)
+        break
+    greater+=1
+"""