Define a two-dimensional array with known length, which can be defined and initialized directly.

var _TheArray = [["0- 1 "，" 0-2"]，[" 1- 1 "，" 1-2"]，["2- 1 "，" 2-2"]]

Method 2:

Defines a two-dimensional array of unknown length.

var？ tArray = new？ array()； //First declare a one-dimensional array.

for(var？ k = 0； K< me; k++)？ //The length of one-dimensional array is I, and I is a variable, which can be changed according to the actual situation.

{

tArray[k]=new？ array()； ? //Declare two dimensions, and each element in a one-dimensional array is an array.

for(var？ j = 0； j & ltp； j++)？ //The number p that each element array in a one-dimensional array can contain is also a variable.

{

tArray[k][j]= " 1 "； ? //The variable is initialized here, and it is uniformly initialized to 1 on my side.

}

}

Extended data:

Creation of JavaScript multidimensional array;

& lt script & gt

var？ allarray=new？ array()；

var？ res =

Function? loaddata()

{

for(var？ I = 0； I<3; i++)

{

var？ starth = i * 200？

var？ strarw = i * 200

var？ endh =(I+ 1)* 200； ?

var？ endw =(I+ 1)* 200； ?

allarray[i]=new？ array()； ?

allarray[i][0]=new？ array()； ?

allarray[i][ 1]=new？ array()； ?

all array[I][0][0]= starth； ?

allarray[I][0][ 1]= strarw；

allarray[I][ 1][0]= endh； ?

allarray[I][ 1][ 1]= endw； ?

}

for(var？ I = 0； I & ltallarray.lengthi++)

{?

var？ sh = all array[I][0][0]；

var？ sw=allarray[i][0][ 1]

var？ eh = all array[I][ 1][0]；

var？ ew = all array[I][ 1][ 1]

Res+= "The starting coordinate of the coordinate" +i+ "is" +SH+ ",and the ending coordinates of" +SW+ "are" +eh+ "and +ew+".

}?

document.getElementById("dv ")。 innerHTML = res

}

& lt/script & gt； .

MDN web document-array