求问foreach循环 是否可以获知已到最后一个元素 请教大神们看看我这写法对不
请教大神们看看我这写法对不
String[][] allData = ssrs.getAllData();
StringBuilder sb = new StringBuilder();
for (String[] single : allData) {
sb.append("'").append(msgID).append("'");
if(single!=allData[allData.length-1]){
sb.append(",");
}
}