這兩個MATLAB字符串連接方法中的哪一個更快？

Question

連接兩個字符串的下列哪一種方法最快？

test = ['ssd' 'sdsd']; 

 

test = sprintf('%s%s', string1, string2); 

Answer 1

一個非常簡單的測試表明，

test = ['ssd''sdsd']; 

更快。

具體來說：

tic; for t=1:10000; test = ['ssd' 'sdsd']; end; toc;     
Elapsed time is 0.105972 seconds. 

而

tic; for t=1:10000; test = sprintf('%s%s', 'ssd', 'sdsd'); end; toc; 
Elapsed time is 0.211863 seconds.