shell编程初学者的求助。。。。

复制内容到剪贴板

代码:

-(root@redhat9:pts/1)-(~/tmp)-
[13915 0] % cat foo.sh
#! /bin/bash

declare -i sum=0
declare -i n
declare -i x
echo -n "Enter number of integers: "
read n
for ((i = 0; i < n; ++i)); do
    echo -n "Enter next integer: "
    read x
    ((sum += x))
done
echo "sum = $sum"
-(root@redhat9:pts/1)-(~/tmp)-
[13915 0] % ./foo.sh
Enter number of integers: 5
Enter next integer: 1
Enter next integer: 2
Enter next integer: 3
Enter next integer: 4
Enter next integer: 5
sum = 15