主要算法说明: 将目标文件(即program.txt)一行一行读入,读一行然后就利用kmp算法求出这一行有几个搜索的字符串,接着在读入一行在用同样的算法求出该行所含有要计数字符的个数,直到读到文件结束.将所有行读出的字符累加,即该文件下含有该字符的个数.-Main Algorithm Descr iption: The target file (ie program.txt) line by line, read, read a line and then find this line us