diff --git a/README.md b/README.md
index bb1afe6..a7be773 100644
--- a/README.md
+++ b/README.md
@@ -657,7 +657,7 @@ function ReadScore(STU stu[],int n,int m) do
      int i,j;
      printf "Input student's ID ,name and score:\n"
      for from i=0 to n-1 do     //输入n个同学
-     
+
         input stu[i].num,stu[i].name 
         for form j=0 to m-1 do      //输入m门成绩
         input stu[i].score[j]
@@ -669,191 +669,162 @@ end
 
 //函数功能：计算每个学生各门课程的总分和平均分
 ```
-void AverSumofEveryStudent(STU stu[],int n,int m)
-{
+function AverSumofEveryStudent(STU stu[],int n,int m) do
    int i,j;
-   for(i=0;i<n;i++)
-   {
+   for form i=0 to n-1 do 
         stu[i].sum = 0;   //初始化每个学生总分为0
-        for(j=0;j<m;j++)
-        {
+        for from j=0 to m-1 do
                 stu[i].sum = stu[i].sum + stu[i].score[j];    //累加分数
-        }
+        end
         stu[i].aver = m>0 ? stu[i].sum /m : -1;   
-        printf("student %d: sum = %.0f,aver = %.0f\n",i+1,stu[i].sum,stu[i].aver);
-   }
-}
+        printf "student %d: sum = %.0f,aver = %.0f\n"
+   end
+end
 ```
 
 //函数功能：计算每门课程的总分和平均分
 ```
-void AverSumofEveryCourse(STU stu[],int n,int m)
-{
+function AverSumofEveryCourse(STU stu[],int n,int m) do
     int i,j;
     float sum[COURSE_NUM],aver[COURSE_NUM];
-    for(j=0;j<m;j++)
-    {
+    for from j=0 to m-1 do
         sum[j] = 0;
-        for(i=0;i<n;i++)
-        {
+        for from i=0 to n-1 do
                 sum[j]+= stu[i].score[j];   //计算n个同学每门课程的总分
-
-        }
+        end
         aver[j] = sum[j]/i;
-        printf("course %d: sum = %.0f,aver = %.0f\n",j+1, sum[j], aver[j]);
-    }
-}
+        printf "course %d: sum = %.0f,aver = %.0f\n"
+    end
+end
 ```
 
 //函数功能：按选择法将数组 sum 的元素值排序
 ```
-void SortbyScore(STU stu[],int n,int m,int(*compare)(float a,float b))
-{
+function SortbyScore(STU stu[],int n,int m,int(*compare)(float a,float b)) do
 	int  i, j, k, t;
-	for (i=0; i<n-1; i++)
-	{
+	for from i=0 to n-2 do
 		k = i;
-		for (j=i+1; j<n; j++)
-		{
-		if ((*compare)(stu[j].sum, stu[k].sum)) k = j;
-		}
-		if (k != i)
-		{		   
-		   for (t=0; t<m; t++)        //交换m门课程的成绩
-                    {
+		for from i+1 to n-1 do
+		if (*compare)(stu[j].sum, stu[k].sum) set k = j;
+		end
+		if k != i		   
+		   for from t=0 to m-1 do        //交换m门课程的成绩
                       SwapFloat(&stu[k].score[t], &stu[i].score[t]);
-                    }
+                    end
 SwapFloat(&stu[k].sum, &stu[i].sum);    //交换总分 
 SwapFloat(&stu[k].aver, &stu[i].aver);  //交换平均分
 SwapLong(&stu[k].num, &stu[i].num);     //交换学号 
 SwapChar(stu[k].name, stu[i].name);     //交换姓名
-		}
-	}
-}
+		end
+	end
+end
 ```
 
 //使数据按升序排序
 ```
-int Ascending(float a,float b)
-{
+function  Ascending(float a,float b) do
         return a < b;    //这样比较决定了按升序排序，如果a<b，则交换
-}
+end
 ```
 
 //使数据按降序排序
 ```
-int Descending(float a,float b)
-{
+function  Descending(float a,float b) do
         return a > b;    // 这样比较决定了按降序排序，如果 a>b，则交换
-}
+end
 ```
 
 //交换两个单精度浮点型数据
 ```
-void SwapFloat(float *x,float *y)
-{
+function SwapFloat(float *x,float *y) do
         float  temp;
         temp = *x;
         *x = *y;
         *y = temp;
-}
+end
 ```
 
 //交换两个长整型数据
 ```
-void SwapLong(long *x,long *y)
-{
+function SwapLong(long *x,long *y) do
         long temp;
         temp = *x;
         *x = *y;
         *y = temp;
-}
+end
 ```
 
 //交换两个字符串
 ```
-void SwapChar(char x[],char y[])
-{
+function SwapChar(char x[],char y[]) do
         char temp[MAX_LEN];
         strcpy(temp, x);
         strcpy(x, y);
         strcpy(y, temp);
-}
+end
 ```
 
 //函数功能：按选择法将数组 num 的元素从低到高排序
 ```
-void AsSortbyNum(STU stu[],int n,int m)
-{
+function AsSortbyNum(STU stu[],int n,int m) do
      	int  i, j, k, t;
-	for (i=0; i<n-1; i++)
-	{
+	for from i=0 to n-2 do
 			int  i, j, k, t;
-		k = i;
-		for (j=i+1; j<n; j++)
-		{
-		if (stu[j].num < stu[k].num) k = j;
-		}
-		if (k != i)
-		{		   
-		   for (t=0; t<m; t++)        //交换m门课程的成绩
-                    {
+		set k = i;
+		for from j=i+1 to n-1 do
+		if stu[j].num < stu[k].num set k = j;
+		end
+		if k != i do		   
+		   for from t=0 to m-1 do        //交换m门课程的成绩
                       SwapFloat(&stu[k].score[t], &stu[i].score[t]);
-                    }
+                    end
 SwapFloat(&stu[k].sum, &stu[i].sum);    //交换总分 
 SwapFloat(&stu[k].aver, &stu[i].aver);  //交换平均分
 SwapLong(&stu[k].num, &stu[i].num);     //交换学号 
 SwapChar(stu[k].name, stu[i].name);     //交换姓名
-		}
-	}
-}
+		end
+	end
+end
 ```
 
 //函数功能：交换法实现字符串按字典顺序排序
 ```
-void SortbyName(STU stu[],int n,int m)
-{
+function SortbyName(STU stu[],int n,int m) do
 	int  i, j, t;
-	for (i=0; i<n-1; i++)
-	{
-		  for (j = i+1; j<n; j++)
-		  {
-			  if (strcmp(stu[j].name, stu[i].name) < 0)
-			  {				  
-				  for (t=0; t<m; t++)   //交换m门课程的成绩
-                                {
+	for from i=0 to n-2 do
+		  for from j = i+1 to n-1 do
+			  if strcmp(stu[j].name, stu[i].name) < 0 do			  
+				  for from t=0 to m-1 do   //交换m门课程的成绩
 				      SwapFloat(&stu[i].score[t], &stu[j].score[t]);
-			        } 
+			        end
 SwapFloat(&stu[i].sum, &stu[j].sum);    //交换总分 
 SwapFloat(&stu[i].aver, &stu[j].aver);   //交换平均分
 SwapLong(&stu[i].num, &stu[j].num);     //交换学号 
 SwapChar(stu[i].name, stu[j].name);     //交换姓名
-			  }
-		  }
-	 }
-}
+			  end
+		  end
+	 end
+end
 ```
 
 //函数功能：按学号查找学生成绩并显示查找结果
 ```
-void SearchbyNum(STU stu[],int n,int m)
-{
+function SearchbyNum(STU stu[],int n,int m) do
         long number;
         int i,j;
-        printf("Input the number you want to search:");
-        scanf("%ld",&number);
-        for(i=0;i<n;i++)
-          if(stu[i].num==number)
-            {
-                printf("\n");
-                for(j=0;j<m;j++)
-                  printf("%d\t",stu[i].score[j]);
-                printf("\n");
+        printf"Input the number you want to search:"
+        input number
+        forfrom i=0 to n-1 do
+          if stu[i].num==number do
+                printf"\n"
+                for from j=0 to m-1 do
+                  printf "%d\t"
+                printf "\n"
                 break;
-            }
-        if(i==n)
-        printf("\nNot found!\n");
-}
+            end
+        if i==n 
+        printf "\nNot found!\n"
+end
 ```
 
 //函数功能：按姓名查找学生成绩并显示查找结果