Thank you very much! But this way only can move the 'Data folder' not the 'installation forlder' After some tries, maybe osu!lazer can't change the installation forlder. But this problem can solved by mklink. this page describe how to use mklink, or you can use some tools to move it. such as "FolderMove"
There may be some grammatical errors, thank your understanding
for others heve the same question(moving data forlder), you can find it(the move botton) here: