daq_计数器\Counter Demos.aliases ..........\Counter Demos.lvlps ..........\Counter Demos.lvproj ..........\半周期测量.vi ..........\周期测量.vi ..........\简单边沿计数.vi ..........\脉冲宽度测量.vi ..........\角度测量.vi ..........\连续脉冲生成.vi ..........\门控边沿计数.vi ..........\频率测量_1 Ctr.vi ..........\频率测量_2 Ctr_一段时间内.vi ..........\频率测量_2 Ctr_分频.vi daq_计数器