收集用户输入

在控制台程序中收集用户的输入

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# 获取用户名
input_username = IO.gets("Please input your username: ")
username = String.strip(input)
first = String.first(username)
# 获取年龄
input_age = IO.gets("Please input your age:")
age_str = String.strip(input_age)
age = String.to_integer(age_str)