P5730求助,编译报错

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    int lon=0;
    string x;
    cin>>n;
    char _mo[5][500];
    for(int i=0;i<n;i++){
        cin>>x[i];
    }
    for(int i=0;i<n;i++){
        int a;
        a=x[i]-'0';
        if(a==0){
            _mo[0][lon]=_mo[1][lon]=_mo[2][lon]=_mo[3][lon]=_mo[4][lon]='X';
            _mo[1][lon+1]=_mo=[2][lon+1]=_mo[3][lon+1]='.';
            _mo[0][lon+1]=_mo[4][lon+1]='X';
            _mo[0][lon+2]=_mo[1][lon+2]=_mo[2][lon+2]=_mo[3][lon+2]=_mo[4][lon+2]='X';
        }if(a==1){
            _mo[0][lon]=_mo[1][lon]=_mo[2][lon]=_mo[3][lon]=_mo[4][lon]='.';
            _mo[0][lon+1]=_mo[1][lon+1]=_mo[2][lon+1]=_mo[3][lon+1]=_mo[4][lon+1]='.';
            _mo[0][lon+2]=_mo[1][lon+2]=_mo[2][lon+2]=_mo[3][lon+2]=_mo[4][lon+2]='X';
        }if(a==2){
            _mo[0][lon]=_mo[0][lon+1]=_mo[0][lon+2]='X';
            _mo[1][lon]=_mo[1][lon+1]='.';_mo[1][lon+2]='X';
            _mo[2][lon]=_mo[2][lon+1]=_mo[2][lon+2]='X';
            _mo[3][lon+1]=_mo[3][lon+2]='.';_mo[3][lon]='X';
            _mo[4][lon]=_mo[4][lon+1]=_mo[4][lon+2]='X';
        }if(a==3){
            _mo[0][lon+2]=_mo[1][lon+2]=_mo[2][lon+2]=_mo[3][lon+2]=_mo[4][lon+2]='X';
            _mo[0][lon]=_mo[0][lon+1]=_mo[2][lon]=_mo[2][lon+1]=_mo[4][lon]=_mo[4][lon+1]='X';
            _mo[1][lon]=_mo[1][lon+1]=_mo[3][lon]=_mo[3][lon+1]='.';
        }if(a==4){
            _mo[0][lon+2]=_mo[1][lon+2]=_mo[2][lon+2]=_mo[3][lon+2]=_mo[4][lon+2]='X';
            _mo[0][lon]=_mo[1][lon]=_mo[2][lon]=_mo[2][lon+1]='X';
            _mo[0][lon+1]=_mo[1][lon+1]=_mo[3][lon]=_mo[4][lon]=_mo[3][lon+1]=_mo[4][lon+1]='.';
        }if(a==5){
            _mo[0][lon]=_mo[0][lon+1]=_mo[0][lon+2]='X';
            _mo[1][lon+1]=_mo[1][lon+2]='.';_mo[1][lon]='X';
            _mo[2][lon]=_mo[2][lon+1]=_mo[2][lon+2]='X';
            _mo[3][lon]=_mo[3][lon+1]='.';_mo[3][lon+2]='X';
            _mo[4][lon]=_mo[4][lon+1]=_mo[4][lon+2]='X';
        }if(a==6){
            _mo[0][lon]=_mo[0][lon+1]=_mo[0][lon+2]='X';
            _mo[1][lon+1]=_mo[1][lon+2]='.';_mo[1][lon]='X';
            _mo[2][lon]=_mo[2][lon+1]=_mo[2][lon+2]='X';
            _mo[3][lon+1]='.';_mo[3][lon]=_mo[3][lon+2]='X';
            _mo[4][lon]=_mo[4][lon+1]=_mo[4][lon+2]='X';
        }if(a==7){
            _mo[0][lon+2]=_mo[1][lon+2]=_mo[2][lon+2]=_mo[3][lon+2]=_mo[4][lon+2]='X';
            _mo[0][lon]=_mo[0][lon+1]='X';
            _mo[1][lon]=_mo[2][lon]=_mo[3][lon]=_mo[4][lon]='.';
            _mo[1][lon+1]=_mo[2][lon+1]=_mo[3][lon+1]=_mo[4][lon+1]='.';
        }if(a==8){
            _mo[0][lon]=_mo[0][lon+1]=_mo[0][lon+2]='X';
            _mo[1][lon+1]='.';_mo[1][lon]=_mo[1][lon+2]='X';
            _mo[2][lon]=_mo[2][lon+1]=_mo[2][lon+2]='X';
            _mo[3][lon+1]='.';_mo[3][lon]=_mo[3][lon+2]='X';
            _mo[4][lon]=_mo[4][lon+1]=_mo[4][lon+2]='X';
        }if(a==9){
            _mo[0][lon]=_mo[0][lon+1]=_mo[0][lon+2]='X';
            _mo[1][lon+1]='.';_mo[1][lon]=_mo[1][lon+2]='X';
            _mo[2][lon]=_mo[2][lon+1]=_mo[2][lon+2]='X';
            _mo[3][lon]=_mo[3][lon+1]='.';_mo[3][lon+2]='X';
            _mo[4][lon]=_mo[4][lon+1]=_mo[4][lon+2]='X';
        }
        lon=lon+2;
        if(i!=n-1){
            _mo[0][lon+1]=_mo[1][lon+1]=_mo[2][lon+1]=_mo[3][lon+1]=_mo[4][lon+1]='.';
            lon++;
        }
    }
    for(int aa=0;aa<5;aa++){
        for(int bb=0;bb<lon;bb++){
            cout<<_mo[aa][bb];
        }
        cout<<endl;
    }
    return 0;
}

报错:

/tmp/compiler_aguweqz7/src: 在函数‘int main()’中:
/tmp/compiler_aguweqz7/src:17:23: 错误：expected identifier before numeric constant
    _mo[1][lon+1]=_mo=[2][lon+1]=_mo[3][lon+1]='.';
                       ^
/tmp/compiler_aguweqz7/src: 在 lambda 函数中:
/tmp/compiler_aguweqz7/src:17:25: 错误：expected ‘{’ before ‘[’ token
    _mo[1][lon+1]=_mo=[2][lon+1]=_mo[3][lon+1]='.';
                         ^
/tmp/compiler_aguweqz7/src: 在函数‘int main()’中:
/tmp/compiler_aguweqz7/src:17:25: 错误：no match for ‘operator[]’ (operand types are ‘main()::<lambda()>’ and ‘int’)