1 package com.text; 2 3 import java.text.MessageFormat; 4 5 /**替换{0}为指定的字符串*/ 6 public class MessageFormatTest { 7 public static void main(String[] args) { 8 String message = "hello {0}{1}"; 9 message = MessageFormat.format(message ,"world","!!!"); 10 System.out.println(message); 11 } 12 }
- <script type="text/javascript">
- String.prototype.format=function()
- {
- if(arguments.length==0) return this;
- for(var s=this, i=0; i<arguments.length; i++)
- s=s.replace(new RegExp("\\{"+i+"\\}","g"), arguments[i]);
- return s;
- };
-
- alert("js实现用自符串替换占位符{0} {1} {2}".format("I", "LOVE", "YOU"));
- </script>