# your code goes here# 定义字符串变量
info= "label_data"
# 输出原始字符串
print("原始字符串：")
print(info)
 
#3.2 转为小写 / 大写、输出长度、输出逆序字符串。（15 分）
 
# 转小写并输出
lower_info = info.lower()
print("小写：", lower_info)
# 转大写并输出
upper_info = info.upper()
print("大写：", upper_info)
# 输出长度
print("长度：", len(info ))
# 逆序并输出
reverse_info = info[::-1]          
print("逆序：", reverse_info)
 

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