正则表达式，与.及增强for循环

package exercise;


public class Ceshi {
public static void main(String[] args){
String merIdStr ="22,24.33,44.53423,5432";
String[] merIds = merIdStr.split(",");
for(int i=0;i<merIds.length;i++){
System.out.println(merIds[i]);
}
String[] merids1 = merIdStr.split("\\.");
//String[] merids1 = merIdStr.split("//.");//注意斜线的倾斜方向
//for(int i:merids1.length){               //没有理解增强型for循环
//System.out.println(merIds1[i]);
for(String m: merids1){                   //此处是将merids1依次放在m中输出
System.out.println(m);
}
}
}

输出结果：

22
24.33
44.53423
5432
22,24
33,44
53423,5432