問(wèn)答題黃帝作內(nèi)經(jīng)史冊(cè)載之而其書(shū)不傳不知何代明夫醫(yī)理者托爲(wèi)君臣問(wèn)答之辭譔素問(wèn)靈樞二經(jīng)傳於世想亦聞陳言於古老敷衍成之雖文多敗闕寔萬(wàn)古不磨之作窺其立言之旨無(wú)非竊擬壁經(jīng)故多繁辭近有會(huì)稽張景岳出有以接乎其人而才大學(xué)博膽志頗堅(jiān)將二書(shū)串而爲(wèi)一名曰類經(jīng)誠(chéng)所謂別裁僞體者歟惜乎疑信相半未能去華存實(shí)余則一眼覷破既非聖經(jīng)賢傳何妨割裂於是雞窓燈火數(shù)更寒暑徹底掀翻重爲(wèi)刪述望聞問(wèn)切之功備矣然不敢創(chuàng)新立異名之曰醫(yī)經(jīng)原旨爲(wèi)醫(yī)家必本之經(jīng)推原其大旨如此至於針灸一法另有專書(shū)故略收一二餘多節(jié)去其據(jù)文注釋皆廣集諸家之說(shuō)約取張氏者爲(wèi)多茍或義理未暢間嘗綴以愚見(jiàn)冐昧之責(zé)何所逃避際此醫(yī)風(fēng)流弊之日茍有一人熟讀而精思之則未必?zé)o小補(bǔ)云乾隆十九年歲在甲戌埽葉老人薛雪譔（節(jié)選自清·薛雪《醫(yī)經(jīng)原旨·緒言》）文意理解①薛雪作《醫(yī)經(jīng)原旨》的原因是什麼？②作者如何評(píng)價(jià)張景嶽的《類經(jīng)》？③“雞窗燈火”典出何處？是何意義？