[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fIbaQ85W0WaxErQSPGaPWBph5sMKDrO_9GtMIcd3tWW8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-05-24 18:03:15",384598854,[8,9,10,11],"0","真","1","假",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","已知x=43,ch='A',y=0;则表达式(x>=y&&ch<'B'&&!y)的值是( )",[18,29,38,47,55,64,67,76,85,93],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],384598849,[22,23,24,25],"if((a>b) &&(b>c) ) k=1; else k=0","if((a>b) ||(b>c) ) k=1 else k=0","if(a<=b) k=0; else if(b<=c) k=1","if(a>b) k=1; else if(b>c) k=1; else k=0","以下程序段中与语句k=a>b?(b>c?1:0):0;功能等价的是( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],384598850,[33,34,35,36],"if(x>y&&x!=y)","if x==y x+=y","if(x!=y) scanf("%d",&x); else scanf("%d",&y)","if(x<y) {x++;y++;}","以下不正确的if语句形式是( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],384598851,[42,43,44,45],"x=10,y=20,z=30","x=20,y=30,z=30","x=20,y=30,z=10","x=20,y=30,z=20","已知int x=10,y=20,z=30;以下语句执行后x,y,z的值是( ).if (x>y) z=x;x=y;y=z",{"answer":48,"createTime":5,"id":49,"options":50,"question":54,"source":27,"type":28},[],384598852,[51,52,53,52],"if(x>0) printf("%f",x) else printf("%f",-x)","if(x>0){x=x+y;printf("%f",x);} else printf("%f",-x)","if(x>0) x=x+y; printf("%f",x); else printf("%f",-x)","以下语句语法正确的是( )",{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":27,"type":28},[],384598853,[59,60,61,62],"'A'<=ch<='Z'","(ch>="A")&&(ch<="Z")","(ch>='A')&&(ch<='Z')","( 'A'<=ch) || ('z'>=ch)","判断ch是否为大写字母的正确表达式是( )",{"answer":65,"createTime":5,"id":6,"options":66,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":27,"type":28},[],384598855,[71,72,73,74],"4","5","6","7","以下程序的运行结果是( ).int main(){ int m=5; if(m++>5) printf("%d\\n",m); else printf("%d\\n",m- -); return 0;}",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":27,"type":28},[],384598856,[80,81,82,83],"缩进排位置相同的if","其之前最近的未配对的if","其之后最近的if","同一行上的if","为了避免在嵌套条件语句if--else中产生二义性,C语言规定:else子句总是与( )配对",{"answer":86,"createTime":5,"id":87,"options":88,"question":92,"source":27,"type":28},[],384598857,[89,90,10,91],"9","8","10","执行下列程序段后,c的值是( ).int a,b,c;a=5,b=4;if (a=b) c=a+b;else c=a-b",{"answer":94,"createTime":5,"id":95,"options":96,"question":98,"source":27,"type":28},[],384598858,[8,72,89,97],"-4","执行下列程序段后,c的值是( ). int a,b,c; a=5,b=4; if (a=(4-b)) c=a+b; else c=a-b"]