@H_404_1@使用Javascript：
@H_404_1@
$(document).ready(function()
{
$('#field').keyup(function()
{
var count = '??';
$('#count').html(count);
});
});
example 1: word,word word
count: (5 - 2) = 3
example 2: word
count: (5 - 1) = 4
example 3: word,word,count: (5 - 2) = 3
example 4: word,word
count: (5 - 3) = 2
最佳答案
就像是：
@H_404_1@
$("#input").keyup(function(){
var value = $(this).val().replace(" ","");
var words = value.split(",");
if(words.length > 5){
alert("Hey! That's more than 5 words!");
$(this).val("");
}
});
$("#input").keypress(function(e){
var value = $(this).val().replace(" ",");
if(words.length > 5){
//alert("Hey! That's more than 5 words!");
e.preventDefault();
}
});
