用javascript实现input文本框只能输入中文的方法:
function ischarsinbag (s, bag)
{
var i,c;
for (i = 0; i < s.length; i++){
c = s.charAt(i);//字符串s中的字符
if (bag.indexOf(c) > -1){
return c;
}
}
return "";
}
//检查函数
function ischinese(s)
{
var errorchar;
var badchar = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789><,[]{}?/+=|\\":;~!#$%()`";
errorchar = ischarsinbag( s, badchar)
if (errorchar != "" ){
report="请重新输入中文\n";
alert(report);
return false;
}
return true;
}
refer to:cn-java.com
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