I\'ve got a program I would like to use to input a password and one or multiple strings from a web page. The program takes the strings and outputs them to a time-datestamped text file, but only if the
java api 自带的mongodb实体无法满足环状多边形的区域匹配（大概是我没用对方法可能）所以我们要自定义一个空间坐标类型
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