# your code goes here
#创建一个字符串变量username，值为:xiaoming；再创建一个变量age，值为:18；使用字符串f格式化拼接为”我的名字叫xiaoming，今年18岁”并在控制台输出。（15分）	
username = 	'xiaoming'		
age = 18		
hello = f'我的名字叫{username}，今年{age}岁'
print(hello)
# 把变量username的值转换为大写输出，输出username变量的长度。
print(username.upper	())
print(len(username))

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