请先看代码:
public class stringBuffer {
public static void main(String[] args) {
String stringArray[];
stringArray = new String[] { "0", "1", "2" };
StringBuffer sb = new StringBuffer();
for (int i = 0; i < stringArray.length; i++) {
sb.append(stringArray[i]);
sb.append("|");
}
System.out.println("输出结果==="+sb);
}
}
结果为:输出结果===0|1|2|
那么如何去掉最后一个“|”呢?很简单
public class stringBuffer {
public static void main(String[] args) {
String stringArray[];
stringArray = new String[] { "0", "1", "2" };
StringBuffer sb = new StringBuffer();
for (int i = 0; i < stringArray.length; i++) {
sb.append(stringArray[i]);
sb.append("|");
}
if(sb.length() > 0){
sb.deleteCharAt(sb.length() - 1);
}
System.out.println("输出结果==="+sb);
}
}
结果为:输出结果===0|1|2
sb.deleteCharAt(sb.length() - 1);
**总结:**
deleteCharAt函数,用于删除给定位置的字符串。