用汇编编写的51单片机计数中断例子，用Proteus仿真，简单易懂-The 51 single-chip microcomputer count interrupt example, written in assembler with Proteus simulation, easy to understand

230个c51单片机仿真实例，LCD电话拨号按键，定时器，中断、、、、(230 C51 microcontroller simulation example, LCD phone dial-up button, timer, interrupt)