显示进度条（回旋镖版）
#!/bin/bash
while :
do
clear
for i in {1..20}
do
echo -e "\033[3;${i}H*"
sleep 0.1
done
clear
for i in {20..1}
do
echo -e "\033[3;${i}H*"
sleep 0.1
done
clear
done
显示进度条（回旋镖版）
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转载自blog.csdn.net/weixin_44799645/article/details/105220832
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