• 2022-06-16 问题

    a = [ i for i in range(1, 8) if i % 2 == 1 ],那么sum(a)的值是( )。

    a = [ i for i in range(1, 8) if i % 2 == 1 ],那么sum(a)的值是( )。

  • 2022-06-03 问题

    下面程序段的输出结果是()。‌int i;‌int a&#91;2&#93;&#91;4&#93;={2,4,6,8,10,12,14,16}‌for(i=0;i<2;i++)‌‌printf("%d,",a&#91;1-i&#93;&#91;i+2&#93;);‌ A: 10,6 B: 14,8 C: 12,4 D: 4,10

    下面程序段的输出结果是()。‌int i;‌int a&#91;2&#93;&#91;4&#93;={2,4,6,8,10,12,14,16}‌for(i=0;i<2;i++)‌‌printf("%d,",a&#91;1-i&#93;&#91;i+2&#93;);‌ A: 10,6 B: 14,8 C: 12,4 D: 4,10

  • 2022-06-01 问题

    Complete the following function: /* copy string2 to string1 */ void strcopy(char string1&#91;&#93;, char string2&#91;&#93;) { int i = 0; while (string2[i] != '\0') { string1[i] = string2[i]; i++; } ____<br/>}[/i][/i][/i] A: return; B: string1[i - 1] = '\0'; C: string1[i] = '\0'; D: string1[i + 1] = '\0';

    Complete the following function: /* copy string2 to string1 */ void strcopy(char string1&#91;&#93;, char string2&#91;&#93;) { int i = 0; while (string2[i] != '\0') { string1[i] = string2[i]; i++; } ____<br/>}[/i][/i][/i] A: return; B: string1[i - 1] = '\0'; C: string1[i] = '\0'; D: string1[i + 1] = '\0';

  • 2022-06-14 问题

    分析下面程序段的运行结果是( )。 char str1&#91;&#93;="abcd",str2&#91;&#93;="abcef"; int i,s; i=0; while((str1[i]==str2[i])&&(str1[i]!='\0')) i++; s=str1[i]-str2[i]; printf("%d\n",s);[/i][/i][/i][/i][/i] A: -1 B: 0 C: 1 D: 不确定

    分析下面程序段的运行结果是( )。 char str1&#91;&#93;="abcd",str2&#91;&#93;="abcef"; int i,s; i=0; while((str1[i]==str2[i])&&(str1[i]!='\0')) i++; s=str1[i]-str2[i]; printf("%d\n",s);[/i][/i][/i][/i][/i] A: -1 B: 0 C: 1 D: 不确定

  • 2022-06-06 问题

    vara=&#91;&#93;;for(vari=0;i<10;i++){a[i]=function(){console.log(i);};}a&#91;6&#93;();输出结果是1。[/i]

    vara=&#91;&#93;;for(vari=0;i<10;i++){a[i]=function(){console.log(i);};}a&#91;6&#93;();输出结果是1。[/i]

  • 2022-06-01 问题

    已知 vec=&#91;&#91;1,2&#93;,&#91;3,4&#93;&#93;,则表达式[[row[i] for row in vec&#93; for i in range(len(vec&#91;0&#93;))&#93;的值为( )[/i]

    已知 vec=&#91;&#91;1,2&#93;,&#91;3,4&#93;&#93;,则表达式[[row[i] for row in vec&#93; for i in range(len(vec&#91;0&#93;))&#93;的值为( )[/i]

  • 2022-07-28 问题

    已知列表lst=&#91;1,2,3&#93;,则分别执行以下代码,结果为&#91;9,4,1&#93;的是: A: for i in lst: i=i**2print(lst) B: for i in range(0,3): lst[i]**=2print(lst) C: for i in range(1,4): lst[3-i]=i**2print(lst) D: for i in range(2,-1,-1): lst[i]**=2print(lst)

    已知列表lst=&#91;1,2,3&#93;,则分别执行以下代码,结果为&#91;9,4,1&#93;的是: A: for i in lst: i=i**2print(lst) B: for i in range(0,3): lst[i]**=2print(lst) C: for i in range(1,4): lst[3-i]=i**2print(lst) D: for i in range(2,-1,-1): lst[i]**=2print(lst)

  • 2022-06-09 问题

    下面代码运行结果是()。publicclassTest{publicstaticvoidmain(String&#91;&#93;args){int&#91;&#93;a=newint&#91;3&#93;;int&#91;&#93;b=newint&#91;&#93;{1,2,3,4,5};a=b;for(inti=0;i&lt;=b.length;i++){System.out.print(a[i]+ " "); }}}[/i] A: 1 2 3 4 B: 1 2 3 C: 0 1 2 3 4 D: 数组越界异常

    下面代码运行结果是()。publicclassTest{publicstaticvoidmain(String&#91;&#93;args){int&#91;&#93;a=newint&#91;3&#93;;int&#91;&#93;b=newint&#91;&#93;{1,2,3,4,5};a=b;for(inti=0;i&lt;=b.length;i++){System.out.print(a[i]+ " "); }}}[/i] A: 1 2 3 4 B: 1 2 3 C: 0 1 2 3 4 D: 数组越界异常

  • 2022-06-01 问题

    已知 vec = &#91;&#91;1,2&#93;, &#91;3,4&#93;&#93;,则表达式 &#91;&#91;row[i] for row in vec&#93; for i in range(len(vec&#91;0&#93;))&#93;的值为______________()_________。[/i] A: [1, 2, 3, 4] B: [[1, 2, 3], 4] C: [[1, 3], [2, 4]] D: [1, 2, [3, 4]]

    已知 vec = &#91;&#91;1,2&#93;, &#91;3,4&#93;&#93;,则表达式 &#91;&#91;row[i] for row in vec&#93; for i in range(len(vec&#91;0&#93;))&#93;的值为______________()_________。[/i] A: [1, 2, 3, 4] B: [[1, 2, 3], 4] C: [[1, 3], [2, 4]] D: [1, 2, [3, 4]]

  • 2022-06-08 问题

    下面语句执行结果为(    ) public static void main(String&#91;&#93; args){ int i=4; if(i<0){ i=1;}

    下面语句执行结果为(    ) public static void main(String&#91;&#93; args){ int i=4; if(i<0){ i=1;}

  • 1 2 3 4 5 6 7 8 9 10