jingyu_Alice的博客

[算法题] 实现字符串中空格的替换给定一个StringBuilder类型的字符串str,将str中所有的空格全部替换为"$00"解题思路:将str按照下标一个字符一个字符的赋值到另外一个字符串对象s中public StringBuilder replaceSpace(StringBuilder str){ StringBuilder sb = new StringBuilder (); String s = str.toString(); for(int i=0;i<s.length();