[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fvUsaLbsiTrXWh_utdMyTobF29P3RXpxBFi4u62plyBA":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":23,"type":24},[],"2023-11-30 18:27:56",110235788,[8,9,10,11],"查询","动态","静态和动态","静态",{"courseId":13,"courseImg":14,"courseName":15},"c8bcd4b309a584816506520ddc7a8070","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9c1e48361b00f3ee2086f4e259ed792b.jpg","单片机应用技术","显示方式编程较简单,但占用I\u002FO口线多,其一般适用显示位数较少的场合",[18,25,34,43,46,55,64,73,82,92],{"answer":19,"createTime":5,"id":20,"options":21,"question":22,"source":23,"type":24},[],110235780,[10,8,9,11],"在单片机应用系统中,LED数码管显示电路通常有 显示方式","v1",0,{"answer":26,"createTime":5,"id":27,"options":28,"question":33,"source":23,"type":24},[],110235783,[29,30,31,32],"静态键盘","矩阵式键盘","动态键盘","独立式按键","某一应用系统需要扩展十个功能键,通常采用( )方式更好",{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":23,"type":24},[],110235786,[38,39,40,41],"将各位数码管的位选线用各自独立的I\u002FO控制","将段选线用一个8位I\u002FO口控制","将各位数码管的公共端直接在+5V或者GND上","将各位数码管的段选线并联","LED数码管若采用动态显示方式,下列说法错误的是",{"answer":44,"createTime":5,"id":6,"options":45,"question":16,"source":23,"type":24},[],[8,9,10,11],{"answer":47,"createTime":5,"id":48,"options":49,"question":54,"source":23,"type":24},[],110235794,[50,51,52,53],"不加反相驱动的共阴极数码管","加反相驱动的共阳极数码管","以上都不对","加反相驱动的共阴极数码管或不加反相驱动的共阳极数码管","一个单片机应用系统用LED数码管显示字符&quot;8&quot;的段码是0x80,可以断定该显示系统用的是",{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":23,"type":24},[],110235797,[59,60,61,62],"0x06","0x7D","0xFA","0x82","共阳极LED数码管加反相器驱动时显示字符&quot;6&quot;的段码是 . A. B. C. D",{"answer":65,"createTime":5,"id":66,"options":67,"question":72,"source":23,"type":24},[],110235799,[68,69,70,71],"整型常量","整型常量或整型表达式","任何类型的表达式","整型表达式","在c语言中,引用数组元素时,其数组下标的数据类型允许是",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":23,"type":24},[],110235801,[77,78,79,80],"软件去抖动","硬件去抖动","单稳态电路去抖方法","硬、软件两种方法","按键开关的结构通常是机械弹性元件,在按键按下和断开时,触点在闭合和断开瞬间会产生接触不稳定,为消除抖动不良后果常采用的方法有",{"answer":83,"createTime":84,"id":85,"options":86,"question":91,"source":23,"type":24},[],"2023-11-30 18:27:57",110235804,[87,88,89,90],"char s[5]=&quot;&quot;","char s[5]=&quot;abcdef&quot;","char s[5]={'a','b','c'}","char s[5]={&quot;abc&quot;}","下面是对一维数组s的初始化,其中不正确的是",{"answer":93,"createTime":84,"id":94,"options":95,"question":100,"source":23,"type":24},[],110235811,[96,97,98,99],"0x10","0x7F","0x40","0x80","在共阳极数码管使用中,若要是仅显示小数点,则其相应的字型码是"]