本压缩包包含多个源代码，有学生信息存储，小学生加减法运算，对英文文本的查找替换，对英文文本中字母统计出现次数，并修改原文件，储存进新文件，打印螺旋方阵，打印日历，长整数的计算和与其他进制的转换等-The archive contains more than one source code, a student information is stored, students add and subtract operation, replace the English text of the search, the English text of the letter on the frequency of occurrence statistics, and modify the original file, save into the new file, print spiral square, print calendar, long integer calculation and the conversion of other binary