Fucking on [non-breakable space] and [trailing space]

Blow are simple explanation on non-breakable space and trailing space.

[non-breakable space]

a,It's hard to type non-breakable space when you are typing.

b,It's invisible character.

c,It's 0xa0(hex),160(digit), in some encoding systems.

d,reference: http://en.wikipedia.org/wiki/Non-breaking_space

 

[trailing space]

a,It's just like:

abc[][][][end of line]   #three trailing space represent as []

b,the whitespace between last character and end of line.

 

Notes:

Brushing up on whitespace in computer science.