7-5.txt

开发王代码 代码

<script type="text/javascript">
  <!--
  var myString = "JavaScript version 1.5 provides many new features."; 
  var re = /\s/g;  //定义正则表达式模式文字，这里是匹配空白
  myString = myString.replace(re, "-"); //用-替换空白，返回替换后的字符串
  //写出结果
  document.write(myString);
  -->
</script>