MATLAB允許在另一個循環(huán)中使用一個循環(huán)。以下部分顯示了一些示例來說明這一概念。
MATLAB中嵌套的for循環(huán)語句的語法如下-
for m = 1:j for n = 1:k <statements>; end end
MATLAB中嵌套while循環(huán)語句的語法如下-
while <expression1> while <expression2> <statements> end end
讓我們使用嵌套的for循環(huán)顯示從1到100的所有質(zhì)數(shù)。創(chuàng)建一個腳本文件并鍵入以下代碼-
for i = 2:100 for j = 2:100 if(~mod(i,j)) break; %如果找到了因子,就不是質(zhì)數(shù) end end if(j > (i/j)) fprintf('%d is prime\n', i); end end
運行文件時,它顯示以下結(jié)果-
2 is prime 3 is prime 5 is prime 7 is prime 11 is prime 13 is prime 17 is prime 19 is prime 23 is prime 29 is prime 31 is prime 37 is prime 41 is prime 43 is prime 47 is prime 53 is prime 59 is prime 61 is prime 67 is prime 71 is prime 73 is prime 79 is prime 83 is prime 89 is prime 97 is prime