Python-56~60

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Question：

>Print a unicode string "hello world".

Hints:

>Use u'strings' format to define unicode string.

Solution:

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---57---

Question:

>Write a program to read an ASCII string and to convert it to a unicode string encoded by utf-8.

Hints:

>Use unicode()/encode() function to convert.

Solution:

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---58---

Question:

Write a special comment to indicate a Python source code file is in unicode.

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Question:

>Write a program to compute 1/2+2/3+3/4+...+n/n+1 with a given n input by console (n>0).

Example:

>If the following n is given as input to the program:   5

>Then, the output of the program should be:   3.55

Hints:

>Use float() to convert an integer to a float.Even if not converted it wont cause a problem because python by default understands the data type of a value

Solution:

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---60---

Question:

>Write a program to compute:   f(n)=f(n-1)+100 when n>0

and f(0)=0

>with a given n input by console (n>0).

Example:

>If the following n is given as input to the program:    5 

>Then, the output of the program should be:     500

 Hints:

>We can define recursive function in Python.

Solution:

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