只用垃圾grep 因特网，你好强大！
#!/bin/bash rm result.txt rm beijing* wget http://www.pm25s.com/beijing.html if [ $? -ne 0 ]; then exit 1 fi echo "<INFO> DOWNLOAD PM_2_5 INFO FINISHED" DATE=$(grep -oP "(?<=数据更新时间：).*(?=</div>)" ./beijing.html) echo "<INFO> DATE MESSAGE: ${DATE}" SITE_LIST_T=$(grep -oP '<span class=\"site\">[^0-9^/]*</span>' ./beijing.html | grep -oP '(?<=<span class=\"site\">).*(?=</span>)') PM_2_5_LIST_T=$(grep -oP '<span class=\"aqis\">[0-9\-\.]*</span>' ./beijing.html | grep -oP '(?<=<span class=\"aqis\">).*(?=</span>)') _site_size=0 _pm_size=0 for SITE in $SITE_LIST_T do SITE_LIST[$_site_size]=$SITE let "_site_size+=1" done for PM in $PM_2_5_LIST_T do PM_2_5_LIST[$_pm_size]=$PM let "_pm_size+=1" done echo "" echo "PM_LIST_LENGTH: ${_pm_size} SITE_LIST_LENGTH: ${_site_size}" echo "" _site=0 for ((_index=0; _index<${_pm_size};_index+=7)) do echo "${DATE} ${SITE_LIST[${_site}]} ${PM_2_5_LIST[${_index}]}" >> result.txt let "_site+=1" if [ $_site -eq ${_site_size} ]; then break fi done cat result.txt