• 2022-06-01 问题

    计算并输出9的阶乘。 jx=1 n=1 do while jx=jx*n enddo 9!=’+’1*2*3*4*5*6*7*8*9=’+’

    计算并输出9的阶乘。 jx=1 n=1 do while jx=jx*n enddo 9!=’+’1*2*3*4*5*6*7*8*9=’+’

  • 2022-06-19 问题

    s=’Python is beautiful! ’ 可以输出“PYTHON”的是 A: print(s[0:7]) B: print(s[0:7].upper()) C: print(s[-21:-14].upper) D: print(s[:-14])

    s=’Python is beautiful! ’ 可以输出“PYTHON”的是 A: print(s[0:7]) B: print(s[0:7].upper()) C: print(s[-21:-14].upper) D: print(s[:-14])

  • 2022-06-19 问题

    s=’Python is beautiful! ’, 可以输出“python”的是: A: print(s[0:7]) B: print(s[0:7].lower()) C: print(s[-21:-14].lower) D: print(s[:-14])

    s=’Python is beautiful! ’, 可以输出“python”的是: A: print(s[0:7]) B: print(s[0:7].lower()) C: print(s[-21:-14].lower) D: print(s[:-14])

  • 2021-04-14 问题

    下列程序段中,循环体s = s +1执行了几次? For i = 0 To 7 Step 3 For j = 0 To 7 Step 2 s = s + 1 Next Next

    下列程序段中,循环体s = s +1执行了几次? For i = 0 To 7 Step 3 For j = 0 To 7 Step 2 s = s + 1 Next Next

  • 2022-05-31 问题

    下列程序段中,循环体s = s +1执行了几次?For i = 0 To 7 Step 3 For j = 0 To 7 Step 2 s = s + 1 NextNext A: 5 B: 7 C: 12 D: 49

    下列程序段中,循环体s = s +1执行了几次?For i = 0 To 7 Step 3 For j = 0 To 7 Step 2 s = s + 1 NextNext A: 5 B: 7 C: 12 D: 49

  • 2022-06-07 问题

    设有如下代码段 1 String s = null; 2 if ( s != null & s.length() > 0) 3 System.out.println("s != null & s.length() > 0"); 4 if ( s != null && s.length() > 0) 5 System.out.println("s != null & s.length() > 0"); 6 if ( s != null || s.length() > 0) 7 System.out.

    设有如下代码段 1 String s = null; 2 if ( s != null & s.length() > 0) 3 System.out.println("s != null & s.length() > 0"); 4 if ( s != null && s.length() > 0) 5 System.out.println("s != null & s.length() > 0"); 6 if ( s != null || s.length() > 0) 7 System.out.

  • 2022-06-15 问题

    int s= 0; for(int sum=1; sum<=1000; ____ ){if(sum%7!=0){s = sum +s;}}System.out.println(s); A: sum+1 B: sum-1 C: sum++ D: sum--

    int s= 0; for(int sum=1; sum<=1000; ____ ){if(sum%7!=0){s = sum +s;}}System.out.println(s); A: sum+1 B: sum-1 C: sum++ D: sum--

  • 2022-05-31 问题

    s="Python is cool",可以输出"python"的是 A: print(s[0:7]) B: print(s[:7].lower()) C: print(s[:-8].lower()) D: print(s[-14:-8])

    s="Python is cool",可以输出"python"的是 A: print(s[0:7]) B: print(s[:7].lower()) C: print(s[:-8].lower()) D: print(s[-14:-8])

  • 2022-07-24 问题

    对颅内压增高的处理中,下列哪项最危险() A: 不限制出入水量JX B: 不规则使用利尿脱水药JX C: 未服用镇静止痛药JX D: 侧脑室穿刺行脑脊液外引流JX E: 腰穿放出脑脊液减压JX

    对颅内压增高的处理中,下列哪项最危险() A: 不限制出入水量JX B: 不规则使用利尿脱水药JX C: 未服用镇静止痛药JX D: 侧脑室穿刺行脑脊液外引流JX E: 腰穿放出脑脊液减压JX

  • 2021-04-14 问题

    设有如下代码段 1 String s = null; 2 if ( s != null & s.length() > 0) 3 System.out.println("s != null & s.length() > 0"); 4 if ( s != null && s.length() > 0) 5 System.out.println("s != null & s.length() > 0"); 6 if ( s != null || s.length() > 0) 7 System.out.println("s != null & s.length() > 0"); 8 if ( s != null | s.length() > 0) 9 System.out.println("s != null | s.length() > 0"); 哪些行将抛出空指针异常?

    设有如下代码段 1 String s = null; 2 if ( s != null & s.length() > 0) 3 System.out.println("s != null & s.length() > 0"); 4 if ( s != null && s.length() > 0) 5 System.out.println("s != null & s.length() > 0"); 6 if ( s != null || s.length() > 0) 7 System.out.println("s != null & s.length() > 0"); 8 if ( s != null | s.length() > 0) 9 System.out.println("s != null | s.length() > 0"); 哪些行将抛出空指针异常?

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