效果:
1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9
#!/bin/bash n=$1 for i in $(seq 1 $n);do for ii in $(seq 1 $i);do echo -n " ${i}" done echo done