转载解决写入csv中间隔一行空行问题 写入csv: with open(birth_weight_file,'w') as f: writer=csv.writer(f) writer.writerow(birth_header) writer.writerows(birth_data) f.close() 这种写法最终的结果就是生成的csv文件每两行中间都有一行空白行,解决办法就是写入后面加上newline='' 写法: with open(birth_weight_file,'w',newl
shell环境中,echo是常用的数据命令,但有的时候,想通过“\n”使输出换行却换不了,这个时候需要增加-e选项: $ echo "Hellow.\nHey man~" Hellow.\nHey man~ $ echo -e "Hellow.\nHey man~" Hellow. Hey man~ 查看echo手册: ECHO() User Commands ECHO() NAME echo - display a line of text SYNOPSIS ec
import org.apache.logging.log4j.Level; import org.apache.logging.log4j.core.impl.Log4jLogEvent; import org.apache.logging.log4j.core.layout.PatternLayout; import org.apache.logging.log4j.message.SimpleMessage; /** * Created by lanhuajian on 2017/3/29
Time limit: 30.000 seconds限时30.000秒 Problem问题 There was once a 3 by 3 by 3 cube built of 27 smaller cubes. It has fallen apart into seven pieces:写曾经有一个3x3x3的立方块,由27个小立方块构成.它被切分为了如下七个碎片: Figure 1: The seven pieces that once formed a cube图1:组成立方体的七块碎片