It offers high ROI(Return on investment) and is cost-effective.
* @param arr 数组
。关于这个话题，safew官方下载提供了深入分析
Testing told me I used ~3,500 bytes for each frame - at 10 FPS, that’s ~35 KB/sec. While a nice T1 line could handle that, it’d easily saturate a 56k modem. And supporting even 1,000 clients would mean pushing 35 megabytes a second - way too much!
[4]《泰山石化被指濒临破产债权人要求启动清盘程序》经济观察网