字符串的逗号处理

String combName = "";

if (null != combList && 0 < combList.size()){

for (AnswerVersionComb comb : combList){

combName += "," + comb.getName();

}

if (RobotStringUtils.isNotBlank(combName)){

combName = combName.substring(1, combName.length());

}

}