点乘Android音视频图像处理NDK专家班 FFmpeg OpenGLES OpenCV

[root@demo-c8 data]# vim for5.sh #!/bin/sh for i in "$*"; do                                                                  echo $i done [root@demo-c8 data]# bash for5.sh 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10

案例: 计算 1..100相加之和

[14:07:17 root@c8prac /data/scripts]#sum=0; for i in `seq 100`;do let sum+=i; done ;echo sum=$sum sum=5050[root@demo-c8 data]# sum=0;for i in 2 4 6 8 10;do let sum+=i;done;echo sum=$sum sum=30[root@demo-c8 data]# sum=0;for i in 1 3 5 7 9;do let sum+=i;done;echo sum=$sum sum=25