题解 | #打印每一行出现的数字个数#
打印每一行出现的数字个数
https://www.nowcoder.com/practice/2d2a124f98054292aef71b453e705ca9
#!/bin/bash
sum=0
row=0
while read -r i;
do
a=0
j=`echo $i | wc -L`
for((k=0;k<j;k++));
do
if [[ ${i:k:1} =~ (1|2|3|4|5) ]];
then
let a++;
fi
done
let row++;
let sum+=a;
echo "line${row} number:${a}"
done < nowcoder.txt
echo "sum is ${sum}"
查看14道真题和解析
