EE308

• • • • ✔**Content**
      • **The links**
      • **PSP FORM**
      • **Description of problem-solving ideas**
      • **The Chart of the Key Functions**
    • **Code Description**
    • • **The entire code**
      • **Summarize this assignment**

https://github.com/yyx0115/EE308_LAB2/tree/main

1. Choose Language

• c++/c
• Python
• java

2. Review the knowledge of C/C++
   we need to know the keywords:
   

After last semester’s study, I acquired some knowledge about Java, C ++/ C. It’s a pity that I didn’t learn Python yet. After a summer vacation of “indulgence”, before starting this assignment, I need to review the “if-else” knowledge to wake up my memory

4. rough thinking

• The file is read in the specified address

• Create a user input class

• a search class to find the keywords

• a class to calculate the number of keywords and the times of switches and cases

• use pointer function probably

• the number of if-else and if else if else

1. create a file named “in.txt” include⤵:

#include 
int main(){
    int i=1;
    double j=0;
    long f;
    switch(i){
        case 0:
            break;
        case 1:
            break;
        case 2:
            break;
        default:
            break;
    }
    switch(i){
        case 0:
            break;
        case 1:
            break;
        default:
            break;
    }
    if(i<0){
        if(i<-1){}
        else{}
    }
    else if(i>0){
        if (i>2){}
        else if (i==2) {}
        else if (i>1) {}
        else {}
    }
    else{
        if(j!=0){}
        else{}
    }
    return 0;
}

2. The input⤵：

   #include
   using namespace std;
   map mp;
   string words[32]={"auto","case","char","const","do",
   		   "double","enum","extern","float","goto",
   		   "int","long","register","short","signed","static",
   		   "struct","typedef","union","unsigned","void","volatile","while"
   		   ,"break","continue","for","if","sizeof","switch","return","default","else"};
   

3. open and read the file⤵:

void getNum(char *s,int grade){
	queue q;
	ifstream infile;
	infile.open(s,ios::in);
	if (!infile){
		printf("file opened failure！！！");
		return ; 
	}

4. To find the switch and case numbers⤵:

	string temp;
	bool judgeswitch=false;
	int cntcase;
	while (!infile.eof()){
		infile>>temp;
		//cout< 
output and the main function⤵:
 
int total=0;
	for (auto v:mp){
		//output all the keywords
		//cout<>url>>grade;
	getNum(url,grade);
	return 0;
}
 
The output⤵
 
 
The entire code 
 
#include
using namespace std;
map mp;
string words[32]={"auto","case","char","const","do",
		   "double","enum","extern","float","goto",
		   "int","long","register","short","signed","static",
		   "struct","typedef","union","unsigned","void","volatile","while"
		   ,"break","continue","for","if","sizeof","switch","return","default","else"};

void getNum(char *s,int grade){
	queue q;
	ifstream infile;
	infile.open(s,ios::in);
	if (!infile){
		printf("file opened failure！！！");
		return ; 
	}
	string temp;
	bool judgeswitch=false;
	int cntcase;
	while (!infile.eof()){
		infile>>temp;
		//cout<>url>>grade;
	getNum(url,grade);
	return 0;
}

 
Summarize this assignment 
 
I gained new knowledge on how to use GitHub,created my own GitHub page. ♪(´▽｀)
 
 
wrote code in the process of consolidating and reviewing the previous courses. After relearning, I found many deficiencies and did not grasp many details in place. ( •̀ ω •́ )y
 
 
Learned how to draw a flow chart with markdown and plan in advance with PSP form, which greatly improved the efficiency
 
 
I feel very guilty for not completing the last two levels of questions, and my ability still needs to be improved. `(>﹏<)′
 
 
The knowledge points of file flow need to be further strengthened. The reason why we choose to use C + + is that the knowledge of Java is not proficient enough and needs to be further study.