我有一个名为!input.txt的文件，其中包含多行，每行是0到10的随机整数。
我想写一个程序来读取文件并计算每个整数(0-10)在文件中出现的次数。例如，如果我的输入文件中有四个“0”、两个“3”和五个“7”，程序将打印如下：Number of occurrences of 0: 4
Number of occurrences of 1: 0
Number of occurrences of 2: 0
Number of occurrences of 3: 2
Number of occurrences of 4: 0
Number of occurrences of 5: 0
Number of occurrences of 6: 0
Number of occurrences of 7: 5
Number of occurrences of 8: 0
Number of occurrences of 9: 0
Number of occurrences of 10: 0
这是我的代码：
^{pr2}$
结果是这样的：Number of occurrences of 0: 4
Number of occurrences of 1: 0
Number of occurrences of 2: 0
Number of occurrences of 3: 0
Number of occurrences of 4: 0
Number of occurrences of 5: 0
Number of occurrences of 6: 0
Number of occurrences of 7: 0
Number of occurrences of 8: 0
Number of occurrences of 9: 0
Number of occurrences of 10: 0
我想我的嵌套for循环有问题，但我不知道是什么问题。请帮忙。在
