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Python语句如下s1=[1,2,3,4]s2=[5,6,7]print(len(s1+s2))以上代码的运行结果是()
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以下错误的定义语句是
A.intx[4][3]={{1,2,3},{1,2,3},{1,2,3},{1,2,3}};
B.intx[][3]={{0),{1},{1,2,3}};
C.intx[][3]={1,2,3,4);
D.intx[4][]={{1,2,3},{1,2,3},{1,2,3},{1,2,3}};
A.int a[2][]={{1,0,1},{5,2,3}};
B.int a[][3]={{1,2,3},{4,5,6}};
C.int a[2][4]={1,2,3},{4,5},{6};
D.int a[][3]={{1,0,1},{},{1,1}};
有定义语句:char*s1=OK,*s2=ok;以下选项中,能够输出K的语句是
A.if(strcmp(s1,s2)!=0)puts(s1);
B.if(strcmp(s1,s2)!=0)puts(s2);
C.if(strcmp(s1,s2)=1)puts(s1);
D.if(strcmp(s1,s2)=0)puts(s1);
画图说明下列语句分配的存储空间即初始化的数据值:
若有下列定义和语句: char*s1="12345",*s2="1234"; printf("%d\n",strlen(strcpy(s1,s2))); 则输出结果为______。
A.int a[1][4]={1,2,3,4,5};
B.float x[3][]={{1},{2},{3}};
C.longb[2][3]={{1},{1,2},{1,2,3}};
D.double y[][3]={0};
A.S1与p1、S2与p2
B.S1与p2、S2与p1
C.S1与S2、p1与p2
D.以上都不对