YouTipPython Exercise Example53
# Python2.x Python Exercise Instance 53
[ Python 100 Examples](#)
**Question:** Learn to use bitwise XOR ^ .
**Program Analysis:** 0^0=0; 0^1=1; 1^0=1; 1^1=0
Program source code:
## Instance
```python
#!/usr/bin/python
# -*- coding: UTF-8 -*-
if __name__ == '__main__':
a = 0o77
b = a ^ 3
print('The a ^ 3 = %d' % b)
b ^= 7
print('The a ^ b = %d' % b)
The output of the above instance is:
```text
The a ^ 3 = 60
The a ^ b = 59
[![Image 4: Python 100 Examples](