1082 Read Number in Chinese (25分)

Given an integer with no more than 9 digits, you are supposed to read it in the traditional Chinese way. Output Fu first if it is negative. For example, -123456789 is read as Fu yi Yi er Qian san Bai si Shi wu Wan liu Qian qi Bai ba Shi jiu. Note: zero (ling) must be handled correctly according to the Chinese tradition. For example, 100800 is yi Shi Wan ling ba Bai.

Each input file contains one test case, which gives an integer with no more than 9 digits.

For each test case, print in a line the Chinese way of reading the number. The characters are separated by a space and there must be no extra space at the end of the line.

这题真的很麻烦

思路： 按照中文方式把数字分节，4位为一节，输出规则相同 几千几百几十几。

如 123456789： 1 （亿节）  2345  （万节）  6789 （个节） 、

两个指针left 和 right 分别指向每节的起始和结束位置

之后就需要考虑如何处理零和空格这些细节问题

设置标志位flag判断是否需要输出ling

给个例子：808080808：ba yi ling ba bai ling ba wan ling ba bai ling ba

800000008 ：ba yi ling ba不要输出成 ba yi wan ling ba

所以需要再来一个标志位isPrint，标志是否输出过位，来避免该问题 。