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练习题

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追风少年

#1 Created at ... [Delete] [Delete and Lock User] 
Scanner scanner = new Scanner(System.in);
System.out.print("请输入上次考试的成绩：");
int scorePre = scanner.nextInt();
System.out.print("请输入本次考试的成绩：");
int scoreNow = scanner.nextInt();
float per = (float)(scoreNow - scorePre) / scorePre * 100;
System.out.printf("您的成绩提高了：%.2f%%\n", per);
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