Day09 String StringBuilder - 代码天地

Day09 String StringBuilder

其他 2018-07-22 00:32:12 阅读次数: 0

StringBuilder在append()时指向的是原地址。

String 在+=时会创建很多字符串，资源浪费，垃圾太多，影响效率

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转载自blog.csdn.net/quiethrh/article/details/81102954

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