市场需求总是在变化的过程中，像今年疫情的爆发一样，大大改变了人们的消费习惯和方式，同城零售家庭服务成为话题。早早布局同城零售的达达集团，在疫情加速需求激发的大背景下，也正持续释放优势。
Having read the documentation of Java\'s String class, it doesn\'t appear to support popping from front(which does make sense since it\'s basically a char array). Is there an easy way to do something
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