www.gusucode.com > 高等数学问题求解源码程序 > CH02/example02_07.m
web -broswer http://www.ilovematlab.cn/forum-221-1.html N=input('Please input an even:'); while mod(N,2)~=0 || N<4 disp('The Number you input is Invalid. Press again...') N=input('Please input an even:'); end p=1; flag=1; while flag p=p+1; q=N-p; if isprime(p) && isprime(q) fprintf('验证式子:%d=%d+%d\n',N,p,q) flag=0; end end