# 100以内整数和
#!/bin/sh
declare -i SUM=0
for ((i=1;i<=100;i+=1))
do
let SUM+=$i
done
echo $SUM
#!/bin/sh
declare -i SUM=0
for i in {1..100}
do
let SUM+=$i
done
echo $SUM
#100以内偶数和
#!/bin/sh
declare -i SUM=0
for ((i=2;i<=100;i+=2))
do
let SUM+=$i
done
echo $SUM
#100以内奇数和
#!/bin/sh
declare -i SUM=0
for ((i=1;i<=100;i+=2))
do
let SUM+=$i
done
echo $SUM本文出自 “技术成就未来” 博客，请务必保留此出处http://jishuweiwang.blog.51cto.com/6977090/1427233
shell使用for循环完成100以内累加,布布扣,bubuko.com
原文：http://jishuweiwang.blog.51cto.com/6977090/1427233