[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fEwRSJBgiFykADE7hPTs4RTQJjzNgtt2NXC3OKnRV59g":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":50},[],"2025-11-29 12:47:53",245110692,[8,9,10,11],"90","Z","122","z",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","926d2266353944edbf48ca776528b3de","字符及其运算","在C语言中,以下代码执行后,输出结果是: char c = 'Z'; printf("%d", c)",[21,32,41,51,60,63,72,78,87,94],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],245110688,[25,26,27,28],"char类型可以存储ASCII码范围内的字符","char类型只能存储英文字符,不能存储汉字","char类型在内存中通常占用1个字节","char类型可以用于存储整数,但超出范围时会发生溢出","关于C语言中的char类型,下列说法正确的有","v1",1,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],245110689,[36,37,38,39],"字符变量可以像整数一样进行算术运算","字符变量只能存储单个字符,不能存储数字","字符变量可以存储ASCII码范围内的任意字符","字符变量不能用于比较操作,例如c1 == c2","关于C语言中字符类型的使用,下列说法正确的有",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":50},[],245110690,[45,46,47,48],"0~255","-128~127","0~127","-127~128","在C语言中,字符类型char的取值范围通常是",0,{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":30,"type":50},[],245110691,[55,56,57,58],"a","A","97","65","在C语言中,以下代码执行后,变量c的值是: c = 'A' + 32",{"answer":61,"createTime":5,"id":6,"options":62,"question":19,"source":30,"type":50},[],[8,9,10,11],{"answer":64,"createTime":5,"id":65,"options":66,"question":71,"source":30,"type":50},[],245110693,[67,68,69,70],"ch + 32","ch - 32","ch | 32","ch & 32","以下哪个表达式可以将字符变量 ch 中的大写字母转换为小写字母",{"answer":73,"createTime":5,"id":74,"options":75,"question":77,"source":30,"type":50},[],245110694,[11,8,58,76],"32","在 C 语言中,执行以下代码后,变量 ch 的值为多少? char ch = 'Z'; ch -= 32",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":30,"type":50},[],245110695,[82,83,84,85],"isdigit()","isalpha()","islower()","isupper()","在 C 语言中,以下哪个函数可以用来判断一个字符是否为字母",{"answer":88,"createTime":89,"id":90,"options":91,"question":92,"source":30,"type":93},[],"2025-11-29 12:50:16",245113521,[],"在C语言中,字符变量c存储的是字符的ASCII码值,因此可以通过printf("%d", c)输出其对应的整数值.例如,字符'A'的ASCII码值为______,字符'0'的ASCII码值为______",2,{"answer":95,"createTime":96,"id":97,"options":98,"question":99,"source":30,"type":93},[],"2025-12-16 05:29:29",267773312,[],"字符 'A' 的 ASCII 码值为 ______,字符 'a' 的 ASCII 码值为 ______"]