若a,b均是整型变量，正确的switch语句是（ ）。 A: switch(a){case 1.0: printf(“i\n”);case 2: printf(“you\n”); ”);} B: switch(a){case b: printf(“i\n”);case 1: printf(“you\n”);} C: switch(a+b){case 1: printf(“i\n”);case 2*a: printf(“you\n”);} D: switch(a+b){case 1: printf(“i\n”);case 2: printf(“you\n”);}

main(){char arr[2][4];strcpy(arr,”you...printf(“%s”,arr); }

有语句：printf(" i love you\n"); ，则在屏幕上会输出什么内容？

设定义char a[20] ,要想使数组a得到字符串″how are you″应使用( ) A: printf(″%s″,a); B: gets(a); C: a=gets(); D: printf(″%c″,a);

【单选题】如果输出语句:printf(“I am “student" you is teacher "). 显示内容? A. I am “student"   you is teacher B. I am  student you is teacher C. I am student    you is teacher D. I am “student" you is teacher

下列程序段的输出结果是（ ）。void main( ){char a[ ]="welcome you！";a[4]='\0';printf("%s\n",a);} A: welc B: welcome C: welcome you D: welcome you!

main() {chararr[2][4]; strcpy(arr,”you”);strcpy(arr[1],”me”); arr[0][3]=’&’; printf(“%s”,arr);}

int x[5]; You can use the array name to output all elements of a numeric array, e.g. printf("%s",x);

( )。下列程序段的输出结果是()。main( ){ char b[ ]="Hello,you"; b[5]='\0'; printf("%s\n",b);} A: Hello B: Hello,you C: Hello0you D: Hello,

下列程序段的输出结果是____。main(){ char b[]="Hello,you";b[5]=0;printf("%s\n",b);}