对于string
str，请使用以下
replaceAll()函数：
str = str.toUpperCase(); //Prevent substitutions of characters in the middle of a wordstr = str.replaceAll("A", "velocity");str = str.replaceAll("B", "distance");//etc.
对于string
str，请使用以下
replaceAll()函数：
str = str.toUpperCase(); //Prevent substitutions of characters in the middle of a wordstr = str.replaceAll("A", "velocity");str = str.replaceAll("B", "distance");//etc.名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
