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View Compilation Error

0_0_39743294_4333\Main.java:66: 错误: 需要:
            case '+' -> {
                    ^
0_0_39743294_4333\Main.java:66: 错误: 非法的表达式开始
            case '+' -> {
                     ^
0_0_39743294_4333\Main.java:66: 错误: 需要';'
            case '+' -> {
                       ^
0_0_39743294_4333\Main.java:69: 错误: 孤立的case
            case '-' -> {
            ^
0_0_39743294_4333\Main.java:69: 错误: 需要:
            case '-' -> {
                    ^
0_0_39743294_4333\Main.java:69: 错误: 非法的表达式开始
            case '-' -> {
                     ^
0_0_39743294_4333\Main.java:69: 错误: 需要';'
            case '-' -> {
                       ^
0_0_39743294_4333\Main.java:72: 错误: 非法的类型开始
            case '*' -> {
            ^
0_0_39743294_4333\Main.java:72: 错误: 需要';'
            case '*' -> {
                ^
0_0_39743294_4333\Main.java:72: 错误: 非法的类型开始
            case '*' -> {
                     ^
0_0_39743294_4333\Main.java:72: 错误: 需要<标识符>
            case '*' -> {
                       ^
0_0_39743294_4333\Main.java:72: 错误: 需要';'
            case '*' -> {
                         ^
0_0_39743294_4333\Main.java:73: 错误: 需要<标识符>
                return a * b;
                        ^
0_0_39743294_4333\Main.java:73: 错误: 需要<标识符>
                return a * b;
                            ^
0_0_39743294_4333\Main.java:75: 错误: 需要class, interface或enum
            case '/' -> {
            ^
0_0_39743294_4333\Main.java:78: 错误: 需要class, interface或enum
                }
                ^
0_0_39743294_4333\Main.java:80: 错误: 需要class, interface或enum
            }
            ^
0_0_39743294_4333\Main.java:83: 错误: 需要class, interface或enum
    }
    ^
18 个错误


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