IPO程序编写方法的英文全称是Input,Process,Output。
IPO程序编写方法的英文全称是Input,Process,Output。
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下列中没有语法错误的pascal程序首部是( )。 Aprogram a1Bprogram a1(output)Cprogram(input,output)Dprogram a1(inputoutput)
当爬虫运行到yieldscrapy.Request()或者yielditem的时候,下列哪个爬虫中间件的方法被调用? A、process_spider_output()B、process_spider_exception()C、process_spider_()D、process_start_requests()
试题一（共20分）阅读下列说明，回答问题1至问题3,将解答填入答题纸的对应栏内。【说明】逻辑覆盖法是设计白盒测试用例的主要方法之一，通过对程序逻辑结构的遍历实现程序的覆盖。针对以下由C语言编写的程序，按要求回答问题。int XOR（char * filename, unsigned long key）{FILE* input = NULL，*output = NULL; //1char *outfilename = NULL;int len = strlen（filename）;unsigned charbuffer;if（ （filename[len-2] == ‘.’） （filename[len-l]== ‘c’））{ //2,3outfilename = new char[len+l]; //4strcpy（outfilename,filename）; outfilename[len-2] = ‘\0’；}else{ //5outfilename = new char[len+5];strcpy（outfilename , filename）;strncat（outfilename,”.c”,2）;}input = fopen（filename，”rb”）;if（ input = NULL）{ //6coutError opening file filenameendl ; //7delete [] outfilename;outfilename = NULL;return 1;}output = fopen（outfilename,”wbf”）;if（ utput =NULL） { //8coutError creating output file ” outfilename endl; //9delete []outfilename;outfilename =NULL;return 1;}while（! feof（input） ）{ //10if（ fread（buffer,sizeof（unsigned char）, 1,input） != 1 ）{ //11if（ ! feof（input））{ //12delete [] outfilename; //13outfllename = NULL;fclose（input）;fclose（output）;return 1;}}else{ //14buffer A= key;fwrite（buffer,sizeof（unsigned char）, 1,output）;}}fclose（input）;fclose（output）;delete []outfllename;return 0;}【问题1】（6分）请给出满足100%DC （判定覆盖）所需的逻辑条件。【问题2】（10分）请画出上述程序的控制流图，并计算其控制流图的环路复杂度V（G）。【问题3】（4分）请给出问题2中控制流图的线性无关路径。
Output is data that has been processed into useful form. called(27). That is a computer processes input into output.A．dataB．informationC．interfaceD．system
为了从当前文件夹中读人文件Filel．txt，某人编写了下面的程序：Private Sub Commandl_Click()Open“Filel．txt”For Output As#20Do While NOt EOF(20)Line Input#20，ch$print chLoopClose#20End Sub程序调试时，发现有错误，下面的修改方案中正确的是A．在Open语句中的文件名前添加路径B．把程序中各处的“20”改为“1”C．把Print ch语句改为Print#20，chD．把Open语句中的Output改为Input
在J2EE中，下面的代码中出现编译错误的是()。A.Filef=newFile("/","autoexec.bat");B.DataInput Streamdin=new Data Input Stream(new File Input Stream("autoexec.bat"));C.Input Stream Readerin=new Input Stream Reader(System.in);D.Output Stream Writer out=new Output Stream Writer(System.in);
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(34）为了从当前文件夹中读入文件File l .txt,某人编写了下面的程序：Private Sub Command 1_CLick()Open"File l .txt" For Output As #20Do While Not EOF(20)Line Input #20, ch$Print chLoopClose #20End Sub程序调试时，发现有错误，下面的修改方案中正确的是A)在Open语句中的文件名前添加路径B)把程序中各处的"20"改为"1"C)把Print ch语句改为Print #20, chD )把Open语句中的Output改为Input
逻辑覆盖法是设计白盒测试用例的主要方法之一，通过对程序逻辑结构的遍历实现程序的覆盖。针对以下由C语言编写的程序，按要求回答问题。int XOR(char * filename,unsigned long key){ FILE * input = NULL , *output =NULL; //i char * outfilename = NULL; int len = strlen(filename); unsigned char buffer; if( (filename[len-2] == '.') //4 strcpy(outfilename, filename); outfilename[len-2] = '\0'; } else{ //5 outfilename = new char[len+5]; strcpy(outfilename, filename); strncat(outfilename,".c",2); } input =fopen(filename,"rb"); if( input == NULL) { //6 cout ＜＜ "Error opening file " ＜＜ filename ＜＜ endl; //7 delete [] outfilename; outfilename = NULL; return 1; } output =fopen(outfilename,"wb"); if( output == NULL ) { //8 cout ＜＜ "Error creating output file " ＜＜ outfilename ＜＜ endl; //9 delete [] outfilename; outfilename = NULL; return 1; } while( ! feof(input) ) { //10 if(fread( //13 outfilename = NULL; fclose(input); fclose(output); return 1; } } else{ //14 buffer ^= key; fwrite( } } fclose(input); //15 fclose(output); delete [] outfilename; return 0; }请给出满足100%DC(判定覆盖)所需的逻辑条件。
阅读下列说明，回答问题。【说明】逻辑覆盖法是设计白盒测试用例的主要方法之一，通过对程序逻辑结构的遍历实现程序的覆盖。针对以下由C语言编写的程序，按要求回答问题。int XOR(char * filename,unsigned long key){ FILE * input = NULL , *output =NULL; //i char * outfilename = NULL; int len = strlen(filename); unsigned char buffer; if( (filename[len-2] == '.') //4 strcpy(outfilename, filename); outfilename[len-2] = '\0'; } else{ //5 outfilename = new char[len+5]; strcpy(outfilename, filename); strncat(outfilename,".c",2); } input =fopen(filename,"rb"); if( input == NULL) { //6 cout ＜＜ "Error opening file " ＜＜ filename ＜＜ endl; //7 delete [] outfilename; outfilename = NULL; return 1; } output =fopen(outfilename,"wb"); if( output == NULL ) { //8 cout ＜＜ "Error creating output file " ＜＜ outfilename ＜＜ endl; //9 delete [] outfilename; outfilename = NULL; return 1; } while( ! feof(input) ) { //10 if(fread( //13 outfilename = NULL; fclose(input); fclose(output); return 1; } } else{ //14 buffer ^= key; fwrite( } } fclose(input); //15 fclose(output); delete [] outfilename; return 0; }请画出上述程序的控制流图，并计算其控制流图的环路复杂度VG.
逻辑覆盖法是设计白盒测试用例的主要方法之一，通过对程序逻辑结构的遍历实现程序的覆盖。针对以下由C语言编写的程序，按要求回答问题。阅读下列说明，回答问题。 【说明】 逻辑覆盖法是设计白盒测试用例的主要方法之一，通过对程序逻辑结构的遍历实现程序的覆盖。针对以下由C语言编写的程序，按要求回答问题。 int XOR(char * filename, unsignedlong key){ FILE * input = NULL , *output =NULL; //i char * outfilename = NULL; int len = strlen(filename); unsigned char buffer; if( (filename[len-2] == '.') //4 strcpy(outfilename, filename); outfilename[len-2] = '\0'; } else{ //5 outfilename = new char[len+5]; strcpy(outfilename, filename); strncat(outfilename,".c",2); } input =fopen(filename,"rb"); if( input == NULL) { //6 cout ＜＜ "Error opening file " ＜＜ filename ＜＜ endl; //7 delete [] outfilename; outfilename = NULL; return 1; } output =fopen(outfilename,"wb"); if( output == NULL ) { //8 cout ＜＜ "Error creating output file " ＜＜ outfilename ＜＜ endl; //9 delete [] outfilename; outfilename = NULL; return 1; } while( ! feof(input) ) { //10 if(fread( //13 outfilename = NULL; fclose(input); fclose(output); return 1; } } else{ //14 buffer ^= key; fwrite( } } fclose(input); //15 fclose(output); delete [] outfilename; return 0; }请给出问题2中控制流图的线性无关路径。
阅读下列说明，回答问题。 【说明】 逻辑覆盖法是设计白盒测试用例的主要方法之一，通过对程序逻辑结构的遍历实现程序的覆盖。针对以下由C语言编写的程序，按要求回答问题。 int XOR(char * filename, unsigned long key){ FILE * input = NULL , *output = NULL; //1 char * outfilename = NULL; int len = strlen(filename); unsigned char buffer; if( (filename[len-2] == '.') //4 strcpy(outfilename, filename); outfilename[len-2] = '\0'; } else{ //5 outfilename = new char[len+5]; strcpy(outfilename, filename); strncat(outfilename,".c",2); } input = fopen(filename,"rb"); if( input == NULL) { //6 cout ＜＜ "Error opening file " ＜＜ filename ＜＜ endl; //7 delete [] outfilename; outfilename = NULL; return 1; } output = fopen(outfilename,"wb"); if( output == NULL ) { //8 cout ＜＜ "Error creating output file " ＜＜ outfilename ＜＜ endl; //9 delete [] outfilename; outfilename = NULL; return 1; } while( ! feof(input) ) { //10 if( fread( //13 outfilename = NULL; fclose(input); fclose(output); return 1; } } else{ //14 buffer ^= key; fwrite( } } fclose(input); //15 fclose(output); delete [] outfilename; return 0; }4.1、请给出满足100%DC(判定覆盖)所需的逻辑条件。(3分)4.2、请画出上述程序的控制流图，并计算其控制流图的环路复杂度V(G)。(7分)4.3、请给出问题2中控制流图的线性无关路径。(5分)
下列选项中属于过滤流Filter Input Stream的子类的是（）。A、Data Input StreamB、Data Output StreamC、Print StreamD、Buffered Output Stream
Which of these statements accurately identifies how Unicast Reverse Path Forwarding can be employed to prevent the use of malformed or forged IP sources addresses？（）A、It is applied only on the input interface of a router.B、It is applied only on the output interface of a router.C、It can be configured either on the input or output interface of a router.D、It cannot be configured on a router interface.E、It is configured under any routing protocol process.
7360 show port(nt-a:xfp:1)后得到如下反馈Traffic Statistics =============================================================================== Input Output ------------------------------------------------------------------------------- Octets 0 0 Packets 0 0 Errors 0 0 以下说法正确的是：（）A、Input代表下行方向流量B、Input代表上行方向流量C、Output代表下行方向流量D、Output代表上行方向流量
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单选题TD-LTE中的MIMO技术英文全称是（）AMaximum Input Minimum OutputBMultiple Input Multiple OutputCMultiple Input Maximum OutputDMaximum Input Multiple Output
单选题Which of these statements accurately identifies how Unicast Reverse Path Forwarding can be employed to prevent the use of malformed or forged IP sources addresses？（）AIt is applied only on the input interface of a router.BIt is applied only on the output interface of a router.CIt can be configured either on the input or output interface of a router.DIt cannot be configured on a router interface.EIt is configured under any routing protocol process.
单选题Operational amplifiers, used primarily in analog circuits, are characterized by（）Ahigh input impedance, high gain and low output impedanceBhigh input impedance, high gain and high output impedanceClow input impedance, low gain and high output impedanceDlow input impedance, high gain and low output impedance
单选题下列选项中属于过滤流Filter Input Stream的子类的是（）。AData Input StreamBData Output StreamCPrint StreamDBuffered Output Stream