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View Compilation Error

0_0_23733549_8084\Main.java:14: 错误: 无法从静态上下文中引用非静态 变量 m
            m=In.nextInt();  
            ^
0_0_23733549_8084\Main.java:15: 错误: 无法从静态上下文中引用非静态 变量 m
            for (int i = 0; i <m; i++) {  
                               ^
0_0_23733549_8084\Main.java:16: 错误: 无法从静态上下文中引用非静态 变量 n
                n=In.nextInt();  
                ^
0_0_23733549_8084\Main.java:17: 错误: 无法从静态上下文中引用非静态 变量 sum
                sum=0;  
                ^
0_0_23733549_8084\Main.java:19: 错误: 无法从静态上下文中引用非静态 变量 n
                for (int j = 1; j <=n; j++) {  
                                    ^
0_0_23733549_8084\Main.java:20: 错误: 无法从静态上下文中引用非静态 变量 sum
                    sum+=k*1.0/j;  
                    ^
0_0_23733549_8084\Main.java:23: 错误: 无法从静态上下文中引用非静态 变量 sum
                System.out.printf("%.2f\r\n",sum);  
                                             ^
7 个错误


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