习题 8: 打印，打印 · 笨办法学 Python

# 习题 8: 打印，打印 <table class="highlighttable"><tbody><tr><td class="linenos"> <div class="linenodiv"> <pre> 1 2 3 4 5 6 7 8 9 10 11 12</pre> </div> </td> <td class="code"> <div class="highlight"> <pre>formatter = "%r %r %r %r"  print formatter % (1, 2, 3, 4) print formatter % ("one", "two", "three", "four") print formatter % (True, False, False, True) print formatter % (formatter, formatter, formatter, formatter) print formatter % ( "I had this thing.", "That you could type up right.", "But it didn't sing.", "So I said goodnight." ) </pre> </div> </td> </tr></tbody></table> ### 你应该看到的结果 ~~~ $ python ex8.py 1 2 3 4 'one' 'two' 'three' 'four' True False False True '%r %r %r %r' '%r %r %r %r' '%r %r %r %r' '%r %r %r %r' 'I had this thing.' 'That you could type up right.' "But it didn't sing." 'So I said goodnight.' $ ~~~ ### 加分习题 1. 自己检查结果，记录你犯过的错误，并且在下个练习中尽量不犯同样的错误。 1. 注意最后一行程序中既有单引号又有双引号，你觉得它是如何工作的？