用pandas读取csv格式文件时，里面有的行比前面的行 多出好多列，会报下面的错
df = pd.read_csv(file_name_csv,encoding="GBK")
File "pandas\_libs\parsers.pyx", line 905, in pandas._libs.parsers.TextReader._tokenize_rows
File "pandas\_libs\parsers.pyx", line 2042, in pandas._libs.parsers.raise_parser_error
pandas.errors.ParserError: Error tokenizing data. C error: Expected 9 fields in line 3, saw 21
解决方法是读取指定的列，这样就能保证全部行的列数相同了
df = pd.read_csv(file_name_csv, usecols=['时间','abc','操作类型','号码','Type','service','报竣返回','操作结果','处理说明'],encoding="GBK")标签：errors,21,tokenizing,parsers,libs,line,csv,pandas From： https://www.cnblogs.com/xiaoweng2023/p/17468850.html