Input a string which contains (a,b,c,...,z,A,B,C,...Z,\t and space ' ') and end of '\n',Please convert all the character into lower case and delete all the space and \t.(1 <= string length <= 20)
Output format:
no '\n'
For example:
[Input]
I L o  Ve       YoU
[Output]
iloveyou
The input "I L o Ve YoU" means that:
I+' '+L+' '+o+' '+' '+V+e+'\t'+Y+o+U+'\n'

明白了，谢谢啦！

还有，能不能用getchar()函数？
（这个我不太会用）

好的，谢谢你啦！