var s = "lang (max. 2000 km ) breit( max. 200 m ),"; var re = new RegExp("\\bmax\\.\\s+([^\\)]+)\\)", "g"); while((n = re.exec(s))!=null){ var v = n[1].replace(/\s+$/, ""); alert(v); }
<script language="javascript"> var s = "lang (max. 2000 km ) breit( max. 200 m )"; var strs = s.split("max."); for (var i = 0; i < strs.length; i++) { alert(strs[i]); var km = strs[i].substring(0, strs[i].indexOf(")")); if (km.length > 0) alert("KM is :"+km); } </script>
<INPUT TYPE="text" id="inp" value="lang (max. 2000 km )"><INPUT TYPE="button" VALUE="test" ONCLICK="fun(inp.value)"> <SCRIPT LANGUAGE="JavaScript"> <!-- function fun(str) { if (str.indexOf("max.") != -1) //如果字符串中包含"max." { var len = str.substring(str.indexOf("max.")+4,str.indexOf(")")); //取"max."和")"中间的部分 alert(len); } else alert("no max!"); } //--> </SCRIPT>
再问一下,我能够得到 '2000 km ',如何从中得到单位 km, 谢谢!!!
因为单位不同,例如'2000 km ','300 m','400 a'等等
var str = "lang (max. 2000 km ),或 breit(max. 200 m ),"; var reg = /\(max[.]([^()]+?)\)/ig, re = [], ret; while((ret = reg.exec(str)) != null) { re[re.length] = ret[1].replace(/[^a-z]/g,''); } alert(re)
var s = "lang (max. 2000 km ) breit( max. 200 m ),";
var re = new RegExp("\\bmax\\.\\s+([^\\)]+)\\)", "g");
while((n = re.exec(s))!=null){
var v = n[1].replace(/\s+$/, "");
alert(v);
}
var s = "lang (max. 2000 km ) breit( max. 200 m )";
var strs = s.split("max.");
for (var i = 0; i < strs.length; i++)
{
alert(strs[i]);
var km = strs[i].substring(0, strs[i].indexOf(")")); if (km.length > 0)
alert("KM is :"+km);
}
</script>
<INPUT TYPE="text" id="inp" value="lang (max. 2000 km )"><INPUT TYPE="button" VALUE="test" ONCLICK="fun(inp.value)">
<SCRIPT LANGUAGE="JavaScript">
<!--
function fun(str) {
if (str.indexOf("max.") != -1) //如果字符串中包含"max."
{
var len = str.substring(str.indexOf("max.")+4,str.indexOf(")")); //取"max."和")"中间的部分
alert(len);
}
else alert("no max!");
}
//-->
</SCRIPT>
var str = "lang (max. 2000 km ),或 breit(max. 200 m ),";
var reg = /\(max[.]([^()]+?)\)/ig, re = [], ret;
while((ret = reg.exec(str)) != null) {
re[re.length] = ret[1].replace(/[^a-z]/g,'');
}
alert(re)