说明：  完整的CPLD/FPGA设计流程包括：• 设计定义与输入；• 功能仿真；• 逻辑综合与优化；• 综合后仿真；• 实现（适配）；• 布线后仿真（时序仿真）；• 下载调试
(Integrity of the CPLD/FPGA design flow, including: • the design of the definition of the input • functional simulation • logic synthesis and optimization • After comprehensive simulation • the realization of (adapter) • After wiring simulation (timing simulation) • Download debugging)