网站动画是怎么做的,个人域名 做公司网站,崇安区网站建设价格,做网站一天能接多少单1.循环介绍
循环就是迭代(重复)一些命令的代码块#xff0c;如果循环控制条件不满足的话#xff0c;就结束循环
2.for循环语法
for 循环控制条件
do
commands
done
#当“循环控制条件”不满足条件#xff0c;结束for循环
3.for循环样例
[rootkibana ~]# cat for-1.…1.循环介绍
循环就是迭代(重复)一些命令的代码块如果循环控制条件不满足的话就结束循环
2.for循环语法
for 循环控制条件
do
commands
done
#当“循环控制条件”不满足条件结束for循环
3.for循环样例
[rootkibana ~]# cat for-1.sh
#!/bin/bashfor planet in Mercury 1 Venus 3 Earth 5 Mars 7 Jupiter 9
doset -- $planet#解析变量planet并且设置位置参数echo $1 $2,000,000 miles from the sun
doneexit 0
[rootkibana ~]# sh for-1.sh
Mercury 1,000,000 miles from the sun
Venus 3,000,000 miles from the sun
Earth 5,000,000 miles from the sun
Mars 7,000,000 miles from the sun
Jupiter 9,000,000 miles from the sun
[rootkibana ~]# [rootkibana ~]# cat for-2.sh
#!/bin/bashs0
for (( i1; i100; ii1 ))
dos$(($s$i))
done
echo The result of 123...100 is $s
[rootkibana ~]# sh for-2.sh
The result of 123...100 is 5050
[rootkibana ~]#
