$ irb
2.0.0-p247 :001 > my_array=[['','',''],['','',''],['','','']]
=> [["", "", ""], ["", "", ""], ["", "", ""]]
2.0.0-p247 :003 > my_array[[0][0]]='o'
=> "o"
2.0.0-p247 :004 > my_array
=> ["o", ["", "", ""], ["", "", ""]]
2.0.0-p247 :005 >
但我想得到:
=> ["o","",""] ["", "", ""], ["", "", ""]]
我不只是想做my_array[[0][0]]=['o' ,'','']