回复内容：
首先，如上面 @柯豪 的答案所说，Shell的行为并不完全和Python代码一致
>>> for i in range(5):
... i
...
0
1
2
3
4
Copy after login
这个例子非常有意思，无人邀请，我来答一下吧。
使用不熟悉的函数和library是危险的。
使用不熟悉的函数和library是危险的。
使用不熟悉的函数和library是危险的。
重要的话说三遍。
首先，先看这个例子，只是把helloworld.cpp 略加改动，题主觉得这个代码应当输出什么结果？
<span class="cp">#include <cstdio></span>
<span class="cp">#include <iostream></span>
<span class="k">using</span> <span class="k">namespace</span> <span class="n">std</span><span class="p">;</span>
<span class="kt">int</span> <span class="nf">main</span><span class="p">()</span>
<span class="p">{</span>
<span class="n">cout</span><span class="o"><<</span><span class="n">printf</span><span class="p">(</span><span class="s">"asdf"</span><span class="p">)</span><span class="o"><<</span><span class="n">endl</span><span class="p">;</span>
<span class="p">}</span>
Copy after login
主要是因为这东西变了.
而c库中的标准的输出没改变.
具体可以看这个文章
http:// eli.thegreenplace.net/2 015/redirecting-all-kinds-of-stdout-in-python/
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主要是因为这东西变了.
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