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                # 習題 7: 更多打印 現在我們將做一批練習,在練習的過程中你需要鍵入代碼,并且讓它們運行起來。我不會解釋太多,因為這節的內容都是以前熟悉過的。這節練習的目的是鞏固你學到的東西。我們幾個練習后再見。不要跳過這些習題。不要復制粘貼! <table class="highlighttable"><tbody><tr><td class="linenos"> <div class="linenodiv"> <pre> 1&#13; 2&#13; 3&#13; 4&#13; 5&#13; 6&#13; 7&#13; 8&#13; 9&#13; 10&#13; 11&#13; 12&#13; 13&#13; 14&#13; 15&#13; 16&#13; 17&#13; 18&#13; 19&#13; 20&#13; 21</pre> </div> </td> <td class="code"> <div class="highlight"> <pre>print "Mary had a little lamb."&#13; print "Its fleece was white as %s." % 'snow'&#13; print "And everywhere that Mary went."&#13; print "." * 10 # what'd that do?&#13; &#13; end1 = "C"&#13; end2 = "h"&#13; end3 = "e"&#13; end4 = "e"&#13; end5 = "s"&#13; end6 = "e"&#13; end7 = "B"&#13; end8 = "u"&#13; end9 = "r"&#13; end10 = "g"&#13; end11 = "e"&#13; end12 = "r"&#13; &#13; # watch that comma at the end. try removing it to see what happens&#13; print end1 + end2 + end3 + end4 + end5 + end6,&#13; print end7 + end8 + end9 + end10 + end11 + end12&#13; </pre> </div> </td> </tr></tbody></table> ### 你應該看到的結果 ~~~ $ python ex7.py Mary had a little lamb. Its fleece was white as snow. And everywhere that Mary went. .......... Cheese Burger $ ~~~ ### 加分習題 接下來幾節的加分習題是一樣的。 1. 逆向閱讀,在每一行的上面加一行注解。 1. 倒著朗讀出來,找出自己的錯誤。 1. 從現在開始,把你的錯誤記錄下來,寫在一張紙上。 1. 在開始下一節習題時,閱讀一遍你記錄下來的錯誤,并且盡量避免在下個練習中再犯同樣的錯誤。 1. 記住,每個人都會犯錯誤。程序員和魔術師一樣,他們希望大家認為他們從不犯錯,不過這只是表象而已,他們每時每刻都在犯錯。
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