`import json user={"name":"张三","age":18,"city":"青岛"} text=input("写一句话存起来:") with open("note.txt","w",encoding="utf-8") as f: f.write(text) with open("note.txt","r",encoding="utf…
`class Animal: def init(self,name): self.name=name def str(self): return self.name def info(self): print("我是动物") def speak(self): …
`class Dog: def init(self,name,breed): self.name=name self.breed=breed def bark(self): print(f"{self.name}:汪！") def intro(self): print(f"我…
`try: num=int(input("输入一个数字：")) print(f"你输入了{num}") except ValueError: print("你输的不是数字")
try: a=int(input("被除数")) b=int(input("除数")) …
`import random import time t1=time.time() target=random.randint(1,10) print("我想到一个1到10的数")
while True: guess=int(input("你的猜测：")) if guess==target: print("Bing…
`def add(a,b): return a+b
print(add(1,2)) print(add(10,20))
def greet(name): return f"你好,{name}"
print(greet("张三"))
def greet2(name="朋友"): return f"你好，{name}" …
` sum=0 for i in range(1,101): sum+=i print(sum)
for i in range(1,11): print(f"{i}的平方是{i**2}")
n=10 while n>=1: print(n) n-=1
for i in range(1,10): for j…
py
age=int(input("请输入年龄"))
if age<18:
print("未成年")
elif age<60:
print("允许访问")
else:
print("老年")
score=int(input("输入分数")) if score>=90: print("优秀") …
`user = {"name": "张三", "age": 18, "city": "青岛"} print(user["name"]) print(user["age"]) user["age"] = 19 user["hobby"] = "写代码" del user["city"] print(user) for key, value in…
`fruits = ["apple", "banana"] print(fruits) fruits.append("orange") fruits.append("grape") fruits.remove("banana") print(fruits) for f in fruits: print(f"我喜欢吃{f}") print(f"一共{len(…
`name="胡翰林" age=int(18) city="株洲" print(f"我叫%s,今年%d岁,来自%s"%(name,age,city))
s="Hello World" print(len(s)) print(s.upper()) print(s.lower()) print(s.strip()) print("单词数",le…
`name="张三" age=int(18) score=88.5 is_student=True
print(name) print(type(name),type(age),type(score),type(is_student))
your_name=input("请输入你的名字:") print("您好，"+your_name+"!") …