画一个长整数处理的各个功能函数的程序流程图

好的，我会根据你的要求画一个长整数处理的各个功能函数的程序流程图。以下是程序流程图的示例：

+-------------------------------------------+
|               Main Function                |
+-------------------------------------------+
|                                           |
| 1. Read input numbers                      |
| 2. Choose operation                        |
| 3. Call corresponding function             |
|                                           |
+-------------------------------------------+

+-------------------------------------------+
|          Addition Function                 |
+-------------------------------------------+
|                                           |
| 1. Initialize carry bit to zero            |
| 2. Loop through each digit of both numbers |
| 3. Add the corresponding digits            |
| 4. Add the carry bit                       |
| 5. Check if the result is greater than 10  |
| 6. Set carry bit if result is greater than 10 |
| 7. Store result in output variable         |
| 8. Return output variable                  |
|                                           |
+-------------------------------------------+

+-------------------------------------------+
|       Subtraction Function                 |
+-------------------------------------------+
|                                           |
| 1. Initialize borrow bit to zero           |
| 2. Loop through each digit of both numbers |
| 3. Subtract the corresponding digits       |
| 4. Subtract the borrow bit                 |
| 5. Check if the result is negative         |
| 6. Set borrow bit if result is negative    |
| 7. Store result in output variable         |
| 8. Return output variable                  |
|                                           |
+-------------------------------------------+

+-------------------------------------------+
|         Multiplication Function            |
+-------------------------------------------+
|                                           |
| 1. Initialize result to zero               |
| 2. Loop through each digit of second number|
| 3. Multiply the first number with the digit|
| 4. Add the result to the previous result   |
| 5. Store result in output variable         |
| 6. Return output variable                  |
|                                           |
+-------------------------------------------+

+-------------------------------------------+
|          Division Function                 |
+-------------------------------------------+
|                                           |
| 1. Initialize quotient and remainder to zero|
| 2. Loop through each digit of dividend     |
| 3. Shift remainder left by one position    |
| 4. Add the next digit to remainder         |
| 5. If remainder is greater than divisor,   |
|    subtract divisor from remainder         |
|    and set corresponding bit in quotient.  |
| 6. Store quotient and remainder in output  |
|    variables                                |
| 7. Return output variables                 |
|                                           |
+-------------------------------------------+

请注意，这只是一个示例程序流程图，实际的程序流程图可能会根据实际需求而有所不同。