boosts::split
时间: 2023-05-25 14:01:07 浏览: 70
boosts::split 是 C++ 程序库 Boost 中的一个字符串分割工具,用于将一个字符串按照给定的分隔符进行分割,并将结果存储到一个容器中。该函数的函数原型为:
template<typename SequenceT, typename RangeT>
void split(SequenceT& OutputSequence,
RangeT& InputRange,
const boost::basic_regex<typename RangeT::value_type>& SeparatorRegex,
boost::algorithm::regex_constants::match_flag_type MatchFlags = boost::algorithm::regex_constants::match_default);
其中 SequenceT 是存储分割结果的容器类型,InputRange 是要分割的字符串,SeparatorRegex 是用于分隔的正则表达式,MatchFlags 是正则表达式匹配的标志。此函数在使用时需要包含 boost/algorithm/string.hpp 头文件。
相关问题
题目描述 文本文件 data.dic 存有若干行由英文单词组成的句子,相邻单词之间有一个空格分割,前三行的信息为:however business leaders have argued that immigration boosts the amarican economy and that ending the daca programme编写程序,输入起始行和终止行,将该范围内的每个单词的首字母改为大写并将结果输出到屏幕上,注意文件中只有小写的英文单词,无其他成分。只需提交需要填写部分的代码。请完善如下程序:#include <stdio.h> #include <stdlib.h> #include <string.h> /* 将每个单词的首字母大写,文件中只存在单词,而且均为小写 */ int main() { FILE *fp; char str[100]; int start, end, i, linecount= 0, slen; /* i为迭代变量,linecount记录当前处理行数是第几行,默认从0开始计数 */ if ((fp= fopen("data.dic", "r")) == NULL ) { printf("can't read data.dic!\n"); exit(-1); } scanf("%d %d", &start, &end); while (!feof(fp)) { fgets(str, 100, fp); linecount++; // 判断是否是 start 至 end 行,不是则继续读文件 if (linecount < start) continue; if (linecount > end) break; if (str[0] > 'z' || str[0] < 'a') break; slen= strlen(str); for (i= 0; i < slen; i++) //符合条件 { /*注意每一行开始的单词前没有空格*/ if (i == 0) str[i]= str[i] - 32; /*******在下面填写代码***********/ /*******在上面填写代码***********/ } printf("%s", str); //输出处理后的字符串 } fclose(fp); return 0; } 输入 输入两个数字 $start$,$end$ $(start \lt end)$。 输出 输出从 $start$ 行到 $end$ 行的修改后的信息。
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main() {
FILE *fp;
char str[100];
int start, end, i, linecount = 0, slen;
if ((fp = fopen("data.dic", "r")) == NULL ) {
printf("can't read data.dic!\n");
exit(-1);
}
scanf("%d %d", &start, &end);
while (!feof(fp)) {
fgets(str, 100, fp);
linecount++;
if (linecount < start) {
continue;
}
if (linecount > end) {
break;
}
if (str[0] > 'z' || str[0] < 'a') {
break;
}
slen = strlen(str);
for (i = 0; i < slen; i++) {
if (i == 0) {
str[i] = str[i] - 32;
}
if (i > 0 && str[i - 1] == ' ') { // 如果前一个字符是空格,则当前字符需要转换为大写
str[i] = str[i] - 32;
}
}
printf("%s", str);
}
fclose(fp);
return 0;
}
```
注意需要将每个单词的首字母改为大写,需要判断前一个字符是否为空格。
Give me a sample IELTS essay with Advanced vocabulary and complex phrases
Sure, here's a sample essay for you:
In today's globalized world, mastering the English language has become increasingly crucial for individuals seeking to expand their career prospects and social opportunities. Accordingly, the International English Language Testing System (IELTS) has emerged as a widely recognized measure of English language proficiency. This essay will examine the benefits of advanced vocabulary and complex phrases in IELTS essays.
Firstly, using advanced vocabulary and complex phrases can enhance the clarity and sophistication of one's writing, demonstrating a deep understanding of the English language. For example, the use of polysyllabic words such as "multifaceted" and "interpretation" can convey complex ideas in a concise and elegant manner. Similarly, the appropriate use of idiomatic expressions such as "in a nutshell" and "at the drop of a hat" can demonstrate a comprehensive understanding of informal English.
Secondly, using advanced vocabulary and complex phrases can strengthen the analytical and critical thinking skills of test-takers. In order to correctly incorporate such language in their essays, test-takers must have a thorough understanding of the words and expressions they are using. This process requires a deep level of analysis and critical thinking, forcing the test-takers to question their assumptions and challenge their preconceived notions.
Finally, proficiency in advanced vocabulary and complex phrases can significantly boost the test-taker's overall score. The IELTS exam grades test-takers on their overall language proficiency, including their understanding and use of advanced vocabulary and complex phrases. Therefore, incorporating such language in one's essay can drastically improve overall language proficiency and increase one's chances of scoring higher on the exam.
In conclusion, utilizing advanced vocabulary and complex phrases can have a profound impact on one's IELTS scores. Improving one's language proficiency through these means not only enhances one's writing, but also strengthens their analytical skills and ultimately, boosts their overall test scores.
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