Hardware every one meter two hundred data, the way of depth + data cycle as char format; Now I want to have a certain depth data delete, is deep and delete the data together, have what good method to achieve, I want to put each frame data in a two-dimensional array of a line, and then convert the depth of the four char to float depth do this a list of tags, do you have any good ways to realize, don't know what to say not understand? Is a two-dimensional array to store the char type variable, each line of four said before a float data, I want to pass this float data quickly find delete this line, please give directions