java 替换字符串,替换第一个字符String text = “hello?hello”.replaceFirst("\\?", “world”); 版权声明:本文为sinat_16754927原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。原文链接:https://blog.csdn.net/sinat_16754927/article/details/79753469