语法格式：
LOAD DATA LOCAL INFILE 'E://test.txt' INTO TABLE test_table FIELDS TERMINATED BY ' ' #ENCLOSED BY "" LINES TERMINATED BY '\r\n' #IGNORE 1 LINES;
注释：
FIELDS TERMINATED BY ' '：表示列（字段栏）按照空格' '来分割 ENCLOSED BY ""：表示字段闭合标签，例如ENCLOSED BY """",则字段以双引号”“闭合，在双引号内部的字段分隔符都会被忽略 LINES TERMINATED BY "\r\n"：表示行的结束标志。Windows 系统下每一行的结束标志是"\r\n"，Linux系统应该是LINES TERMINATED BY "\n"或<LINES TERMINATED BY "\r"或可以直接省略。 IGNORE 1 LINES：忽略特定行数，CSV文件可以忽略掉第一行标题