标签：void bsp demo hello int pack class world ati
package Demo;
public class Demo3 {
public static void main(String[] args) {
String str = "helloworld";
System.out.println(str.charAt(0));//h
System.out.println(str.charAt(5));//w
}
}
标签：void bsp demo hello int pack class world ati
原文地址：http://www.cnblogs.com/mengliang/p/6833278.html
