将数组转成字符串~~~~
String[] aa ={"z","s","l","s"};
String s = Arrays.toString(aa);
System.out.println(s);//[z, s, l, s]
String substring = s.substring(1, s.length() - 1);
System.out.println(substring);//z, s, l, s
将数组转成字符串~~~~
String[] aa ={"z","s","l","s"};
String s = Arrays.toString(aa);
System.out.println(s);//[z, s, l, s]
String substring = s.substring(1, s.length() - 1);
System.out.println(substring);//z, s, l, s