Write a program to remove all trailing blanks and tabs from each line of input, and to delete entirely blank lines. 其实做这道题目有两种思路: 1.后向模式:利用getline()先将输入流中,每一行完全接收,然后从接收的line字符串中末尾,往前扫,直到发现第一个非空格和制表符字符: 2.前向模式:每接收一个字符,都要进行输出.判断. /* K&R2 1-18 p31: Writ
datafile.txt #文件 Man: this is the right room for an argument. Other Man: I've told you once. Man: No you haven't Other Man: Yes, I have. (pause) Man: When? Other Man: Just now. Man: No you didn't Other Man: Yes I did. Man: You didn't Other Man: I'm
// a:列数 bool:排序升序判断参数 true false Str:支持多列 function newUnitSort(a, bool, str) { var oTable = document.getElementById('ATEST'); var arr = []; for (var i = 0; i < oTable.tBodies[0].rows.length; i++) { arr[i] = oTable.tBodies[0].rows[i]; } if (bool) { if
CharSequence就是字符序列,String, StringBuilder和StringBuffer都是其实现类. 模仿String.trim() 实现了一个CharSequence通用的去除两端空格方法. public static CharSequence trim(CharSequence cs) { int len = cs.length(); int st = 0; while ((st < len) && (cs.charAt(st) <= ' ')) { s