View Compilation Error

0_0_36642215_18636\Main.java:21: 错误: 无法从静态上下文中引用非静态 变量 this
                this.ans = 0;
                ^
0_0_36642215_18636\Main.java:24: 错误: 需要数组, 但找到String
                        if(image[row][col] == query[0]){search(image, row, col, n, m, query, 0);}
                                                   ^
0_0_36642215_18636\Main.java:34: 错误: 无法从静态上下文中引用非静态 变量 this
        if(cur == query.length()){this.ans++; return;}
                                  ^
0_0_36642215_18636\Main.java:36: 错误: 无法从静态上下文中引用非静态 变量 this
        for(int[] direction: this.directions){
                             ^
4 个错误