Java中如何判断两个String是否相等 https://blog.csdn.net/GongchuangSu/article/details/50413903?utm_medium=distribute.wap_aggpage_search_result.none-task-blog-2~aggregatepage~first_rank_ecpm_v1~rank_v31_ecpm-5-50413903.wap_agg_so&utm_term=java%E4%B8%A4%E4%B8%AAstring%E6%98%AF%E5%90%A6%E7%9B%B8%E7%AD%89
