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View Compilation Error

0_0_30030807_19297\Main.java:4: 错误: 找不到符号
		Scanner kai = new Scanner(System.in);
		^
  符号:   类 Scanner
  位置: 类 Main
0_0_30030807_19297\Main.java:4: 错误: 找不到符号
		Scanner kai = new Scanner(System.in);
		                  ^
  符号:   类 Scanner
  位置: 类 Main
2 个错误


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