awk '{if ($1==1) print "A"; else if ($1==2) print "B"; else print "C"}'
awk中也支持++或者+=运算符
grep '接口耗时：' test.log|cut -d "m" -f 1 |cut -d "：" -f 2|awk 'BEGIN {count=ms1=ms2=ms3=0}{if($1<1) ms1++;else if($1>=1&&$1<=5) ms2++;else ms3++;count++}END{print "ms1,ms1占 比 ",ms1,",",ms1/count*100,"%";print "ms2,ms2占比",ms2,",",ms2/count*100,"%";print "ms3,ms3占比",ms3,",",ms3/count*100,"%"}'