MATLAB：如何根据重复数字划分字符串答案

【问题标题】：MATLAB: How to divide up a string according to a recurring numberMATLAB：如何根据重复数字划分字符串
【发布时间】：2021-01-18 15:09:41
【问题描述】：

美好的一天。

下面是我要分文的一个例子：

str =      ["1 This is sentence one of verse one, "+ ...
            "2 This is sentence one of verse two. "+ ...
            "3 This is sentence two of verse three; "+ ...
            "1 This is sentence three of verse one? "+ ...
            "2 This is sentence four of verse two, "+ ...
            "3 this is sentence four but verse three!"];

注意数字是如何重新开始的，这表明新的章节开始了。如何制作一个 nx1 字符串，其中 n=chapters.结果应该是这样的：

感谢您的帮助。谢谢！

【问题讨论】：

不应该有3行（诗句）吗？图为2行
好眼光。是的。有什么想法吗？

标签： string matlab conditional-statements division

【解决方案1】：

你只需要一点点字符串操作：

>> c=convertStringsToChars(str);
>> splitstring = split(str,c(1));
>> splitstring = splitstring(strlength(splitstring) > 0);
>> formattedstring = string(1:length(splitstring)).' + " " + c(1) + splitstring

formattedstring = 

  2×1 string array

    "1 1 This is sentence one of verse one, 2 This is sentence one of verse two. 3 This is sentence two of verse three; "
    "2 1 This is sentence three of verse one? 2 This is sentence four of verse two, 3 this is sentence four but verse three!"

【讨论】：