docs: function getGB2312Pinyin(str, sp) {
    var i = void 0,
        l = void 0,
        t = void 0,
        p = void 0,
        ret = '';
    if (sp == null) {
      sp = '';
    }
  
    var _fj$GB2312Pinyin = __WEBPACK_IMPORTED_MODULE_0__core__["a" /* default */].GB2312Pinyin,
        fonts = _fj$GB2312Pinyin.fonts,
        pinyin = _fj$GB2312Pinyin.pinyin;
  
    for (i = 0, l = str.length; i < l; i++) {
      if (str.charCodeAt(i) >= 0x4e00) {
        p = fonts.indexOf(str.charAt(i));
        if (p > -1 && p < 3755) {
          for (t = pinyin.length - 1; t > 0; t = t - 2) {
            if (pinyin[t] <= p) {
              break;
            }
          }
          if (t > 0) {
            ret += pinyin[t - 1] + sp;
          }
        }
      }
    }
  
    return ret.substr(0, ret.length - sp.length);
  }