### 统计文字个数 ```javascript function wordCount(data) { var pattern = /[a-zA-Z0-9_\u0392-\u03c9]+|[\u4E00-\u9FFF\u3400-\u4dbf\uf900-\ufaff\u3040-\u309f\uac00-\ud7af]+/g; var m = data.match(pattern); var count = 0; if( m === null ) return count; for (var i = 0; i < m.length; i++) { if (m[i].charCodeAt(0) >= 0x4E00) { count += m[i].length; } else { count += 1; } } return count; } ```