Python中打印字符串时可以调用ljust(左对齐),rjust(右对齐),center(中间对齐)来输出整齐美观的字符串,使用起来非常简单,包括使用第二个参数填充(默认为空格)。看下面的例子就会明白了:
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
print '|','*'.ljust(10),'|'
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
print '|','*'.ljust(10,'-'),'|'
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
print '|','*'.rjust(10,'-'),'|'
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
print '|','*'.center(10,'-'),'|'
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
for a in range(1, 6):
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
print 'a = '.ljust(5), repr(a).ljust(10), 'b = '.ljust(5), repr(a * 2)
输出结果:
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
| * |
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
| *--------- |
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
| ---------* |
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
| ----*----- |
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
a = 1 b = 2
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
a = 2 b = 4
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
a = 3 b = 6
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
a = 4 b = 8
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLl52bO9CXzJ3b0F2YpRmbJdmbp5WasRXdP9CXzV2Zh1WSvwVbvNmLzd2bsJmbj5yd3d3Lc9CX6MHc0RHaiojIsJye.gif)
a = 5 b = 10
...
本文转自CoderZh博客园博客,原文链接:http://www.cnblogs.com/coderzh/archive/2008/05/02/1179709.html,如需转载请自行联系原作者