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=’+’
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])
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])
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
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
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.
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--
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])
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
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?