replace
【www.jljhlq.com--作文素材】
replace一:replace 的用法
replace是STL 算法中的一种,其用法如下：Examines each element in a range and replaces it if it matches a specified value.template void replace( ForwardIterator _First, ForwardIterator _Last, const Type& _OldVal, const Type& _NewVal );Parameters_FirstA forward iterator pointing to the position of the first element in the range from which elements are being replaced._LastA forward iterator pointing to the position one past the final element in the range from which elements are being replaced._OldValThe old value of the elements being replaced._NewValThe new value being assigned to the elements with the old value.RemarksThe range referenced must be valid; all pointers must be dereferenceable and within the sequence the last position is reachable from the first by incrementation.The order of the elements not replaced remains stable.The operator== used to determine the equality between elements must impose an equivalence relation between its operands.The complexity is linear; there are (_Last – _First) comparisons for equality and at most (_Last – _First) assignments of new values.Example Copy Code // alg_replace.cpp// compile with: /EHsc#include #include #include int main( ) { using namespace std; vector v1; vector ::iterator Iter1; int i; for ( i = 0 ; i
replace二:请问replace by和replace with的区别是什么?
觉得2楼说的正确,在多数情况下replace by 可为replace with 代替,而replace with 有时代替不了replace by(replace by 常有“取而代之”的味道）.如果一道选择题,需要从这两个词中选择的话,就选指代范围较小的replace by 吧.
replace三:如何用Replace Pioneer获得这种统计数据表有个TXT文本是以下内容：段前1 111 11 11111 111 1 111 11 11 111 111前11 111 111 111 11 1 1 111111 111111 11111111111111 11111 111111111111111前11 1111 111 11 1111前11 11 111 11 1 1 111111段前11111111111 111111 11111 111 1111111111 11 11前1111 11111 1111 11 11111 111 11111 11 1111 1 111 11 11前111 111 1111 111 111111 111 1111 111 111 111 11 11111 111 11 11 11 1 1我想针对这个文本获得一个统计数据表,涉及到三个数据(值都不超过99,所以限定用两位数表示)：数据A：统计整个文本中有多少个“段”字数据B：统计每个“段”字是文本中出现的第几个“段”字数据C：统计每个“段”字与它后面一个“段”字之间有几个“前”字,但如果是文本中最后一个“段”字就是统计它到文本末尾之间有多少个“前”字数据表的格式为\A\B\C\,每行一个,所以统计出来应该是：\02\01\04\\02\02\03\最后一个问题就是如果有一批txt文件都需要做这种统计,如何批量获得多个对应的统计表（一个txt文件对应一个txt格式的统计表）
用Replace Pioneer按照以下步骤操作：ctrl-o打开文本文件ctrl-h打开replace窗口* 在search for pattern输入“段”（不带双引号）* 在replace with pattern输入：sprintf("\\%02d\\%02d\\%02d\\",$unit_num,$word_no,count($next,"前"))\n* 去掉print unmatched unit选项点击replace,完成.
