📜  java stringbuilder 设置值 - Java 代码示例
📅  最后修改于: 2022-03-11 14:52:17.988000             🧑  作者: Mango
代码示例2
StringBuilder str = new StringBuilder("ABCD");
// set char at index 2 to 'L'
str.setCharAt(2, 'L');