字符串用法

provinceCode = provinceCode.indexOf("|") != -1 ? provinceCode : provinceCode.substring(0, 2) + "|" + provinceCode.substring(2, provinceCode.length());

//只替换一次

StringUtils.replaceOnece("abcabcabc","a","1");——>输出结果1bcabcabc

//全部替换

StringUtils.replace("abcabcabc","a","1");——>输出结果1bc1bc1bc

//限制替换次数

StringUtils.replace("abcabcabc","a","1",1);——>输出结果1bcabcabc