0_0_18598093_6446\Main.java:2: 错误: 需要'(' public static void main{ ^ 0_0_18598093_6446\Main.java:4: 错误: 需要')' System.out.println("a+=1,%d"a); ^ 0_0_18598093_6446\Main.java:4: 错误: 非法的表达式开始 System.out.println("a+=1,%d"a); ^ 3 个错误