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什么原因造成了这样

File "C:\Users\ycx\eclipse-workspace\imooc\src\baike_spider\spider_main.py", line 3

SyntaxError: Non-ASCII character '\xc4' in file C:\Users\ycx\eclipse-workspace\imooc\src\baike_spider\spider_main.py on line 4, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details