已经卸载重装几次,仍然无法运行最简单的编译,打开内置的阅读器,这样该怎么办?下方内容显示:
This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020/W32TeX) (preloaded format=pdftex)
restricted write18 enabled.
entering extended mode
(./123.tex
! Undefined control sequence.
l.1 documentclass
{article}
?
感谢回复,按回复问题已解决