/**
* @author PLA 字符串左旋
*/
public static void main(String[] args) {
String s = "abcdefghi";
char[] ch = s.toCharArray();
int m = 3;
System.out.println("原字符串:" + s);
swap(ch, 0, m);
swap(ch, m, s.length());
swap(ch, 0, s.length());
System.out.println("左旋"+m+"位:");
System.out.println(ch);
}
public static char[] swap(char[] ch, int m1, int m2) {
if (m1 > ch.length) {
System.out.println("Error!");
}
int begin, end;
char temp;
for (begin......
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