TikZ help lines with axes

Help lines with axes

\draw[help lines,xstep=.1,ystep=.1] (0,0) grid (1,1);%
\foreach \x in {0,1,…,9} { \node [anchor=north] at (\x/10,0) {0.\x}; }%
\foreach \y in {0,1,…,9} { \node [anchor=east] at (0,\y/10) {0.\y}; }