- echo 1 + 3.5 | bc
- awk "BEGIN {print 1+3.5; exit}"
- python -c "print 1+3.5"
- perl -e "print 1+3.5"
只需用变量替换数字,例如：echo $n1 $n2 |公元前
- echo 1 + 3.5 | bc
- awk "BEGIN {print 1+3.5; exit}"
- python -c "print 1+3.5"
- perl -e "print 1+3.5"
只需用变量替换数字,例如：echo $n1 $n2 |公元前
