画一个菱形
代码:
#!/bin/bash
source ./afunction.sh
#i定义菱形最宽部分为7个字符
i=7
j=1
#is2是自定义函数,用于判断奇数偶数
is2 $i
m=$?
if [ $m -eq 1 ] && [ $i -gt 1 ]; then
let x=$i-1
let y=$x/2
while [ $j -le $i ]; do
line=""
k=1
is2 $j
n=$?
if [ $n -eq 0 ]; then
echo " "
echo " "
else
let kk=($i-$j)/2
let kkk=$kk+$j
while [ $k -le $i ];do
if [ $k -le $kk ]; then
echo -n " "
elif [ $k -gt $kk ] && [ $k -le $kkk ]; then
echo -n "x"
else
echo -n " "
fi
let k=k+1
done
#echo '\n'
fi
let j=j+1
done
fi
echo " "
echo " "
#以下是画下半部分
let j=$i-2
while [ $j -ge 1 ]; do
line=""
k=1
is2 $j
n=$?
if [ $n -eq 0 ]; then
echo " "
echo " "
else
let kk=($i-$j)/2
let kkk=$kk+$j
while [ $k -le $i ];do
if [ $k -le $kk ]; then
echo -n " "
elif [ $k -gt $kk ] && [ $k -le $kkk ]; then
echo -n "x"
else
echo -n " "
fi
let k=k+1
done
#echo '\n'
fi
let j=j-1
done
echo " "