摘要：
js 代码function checkLen(obj,len){if(obj.value.replace(/[^/x00-/xFF]/g,'**').length>=len){obj.value=leftUTFString(obj.value,len);}}function getStringUTFLength(str) { var value = str.replace(/[^/x00-/xff]/g," "); return value.length; } function leftUTFString(str,len) { if(getString 阅读全文