[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fuBrAprEpeHM45LFkD46oNLtj-lZkMJZVQa1OQTxmCHY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-03-16 19:13:21",134289324,[8,9,10,11],"1.5, 1.5","1.5□1.5","x=1.5, y=1.5","x=1.5□y=1.5",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"5c593781e134e502205684e7f8d14d9c","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","计算编程思维","work_33146860","作业7-2","使用scanf("x=%f, y=%f", &x, &y),要使变量x和y的值均为1.5,正确的输入是( )",[21,26,35,44,53,62,71,78,83,89],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],134289325,[30,31,32,33],"'1', '2', '3'","'1','□', '2'","'1','□', '3'","'1','□', '□'","执行下面程序段,假设用户输入为1□□2□3,则变量ch1,ch2和ch3的值为( ).char ch1, ch2, ch3;scanf("%c%c%c", &ch1, &ch2, &ch3)",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],134289326,[39,40,41,42],"在调用标准库函数前,必须重新定义该库函数","用户可以重新定义标准库函数,重新定义后,该库函数将失去原有含义","标准C不允许用户重新定义标准库函数","在调用标准库函数时,系统自动将该库函数所在的头文件包含到源文件中","以下说法正确的是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],134289327,[48,49,50,51],"005678","5678","|005678|","|-05678|","若有变量定义int k = 5678;,则printf("|%06d|\\n", k)的输出为( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],134289328,[57,58,59,60],"int","float","double","不确定","表达式18\u002F4*sqrt(4)的数据类型为( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],134289329,[66,67,68,69],"字符","字符串","整型表达式","实数","用getchar函数可以从键盘读入一个( )",{"answer":72,"createTime":73,"id":74,"options":75,"question":76,"source":24,"type":77},[],"2024-03-16 19:21:57",134290026,[],"描述下列程序的功能 #include <stdio.h> #include <math.h> int main ( ) { int n = 127, k1 = 0, k2 = 0; double x = log10(n) \u002F log10(2); double y = log(n) \u002F log(2); k1 = ceil(x) +1; k2 = ceil(y) +1; printf("%d %d\\n", k1, k2); return 0; }",2,{"answer":79,"createTime":73,"id":80,"options":81,"question":82,"source":24,"type":77},[],134290028,[],"描述下列程序的功能 #include <stdio.h> int main( ) { int c[26], i; char ch; while (ch = getchar( ) != '\\n') if (ch >= 'a' && ch <= 'z') c[ch - 'a']++; for (i = 0; i < 26; i++) printf("%c:%d\\n", i + 'a', c[i]); return 0; }",{"answer":84,"createTime":73,"id":85,"options":86,"question":87,"source":24,"type":88},[],134290029,[],"从键盘输入一行字符,统计其中的字母、数字、空格的个数,同时统计字母中大写、小写字母的个数",4,{"answer":90,"createTime":91,"id":92,"options":93,"question":94,"source":24,"type":88},[],"2024-03-16 19:21:58",134290030,[],"打印输出0~360°之间、增量是30°的所有角度的正弦、余弦函数值"]