A place to hold mainly reading notes, and some technical stuff occasionally. 这里主要是一些读书笔记、感悟;还有部分技术相关的内容。
目录[-]
strtrim();
eg:
>> a = ' Keep Moving ', aLen = length(a)
a =
Keep Moving
aLen =
13
>> b = strtrim(a), bLen = length(b)
b =
Keep Moving
bLen =
11
这个好像没有专门的函数,不过可以转化一下,通过替换实现:strrep();
eg:
>> a = ' Keep Moving ', aLen = length(a)
a =
Keep Moving
aLen =
13
>> c = strrep(a, ' ', ''), cLen = length(c)
c =
KeepMoving
cLen =
10
num2str()
函数将一个double型的行向量(仅包含0, 1)转化为一个二进制串,那么问题来了: >> m = [0, 1, 0, 1], mLen = length(m)
m =
0 1 0 1
mLen =
4
>> n = num2str(m), nLen = length(n)
n =
0 1 0 1
nLen =
10
由于后面要用到这个二进制串,刚开始程序一直报错,后来进行单步调试,发现这个串长度很怪异; 原来,在将向量转化为串时,MATLAB默认会在每个数后面加两个空格,所以需要想办法处理掉这些空格。