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PHP 生成 简单四则运算。

Thanks for Open Source.

本代码基于 jiaych php四则运算计算函数 实现。

creatmath(, = (0, (10, ( = 1; < ; ++ =(0, (10, = ->rand_num(, (0, (10, rand_num(, = (1, 4 ="" ( 1: = . "+" . 2: = . "-" . 3: = . "*" . 4: = . "/" . exp2rpn( = ('#' = = ('(', '+', '-', '*', '/', ')' = ('#' => 0, '(' => 10, '+' => 20, '-' => 20, '*' => 30, '/' => 30 ='' = ( ( = 0; < ; ++ = (, , 1 ( == '(' [] = } ( ! (, .= (+1< = (, +1, 1 ((, )||( [] = = [] = = } ( == ')' ( = (); >= 0; -- = ( ( == "(" } [] = } ([] <= [( [] = ( [] = } [] = ( = (); >= 0; -- (() == '#') [] = ( = ( (=="+" =( =( []=+ (=="-" =( =( []=- (=="*" =( =( []=* (=="/" =( =( []=/ []= [0 } ?> randmath.php <? ("Content-type: text/html; charset=utf-8" ("randmath.php" = = randmath(); =10 (>0 = ->creatmath(4, 1); =->exp2rpn( (()&>0 -- . "=" . ."</br>" ?> ShowRPN.php

这样就能生成简单四则运算了。

/php/7277.htmlwww.phpzy.comtrue/php/7277.htmlTechArticlePHP PHP 生成简单四则运算。 Thanksfor OpenSource. 本代码基于 jiaych php四则运算计算函数 实现。 ? creatmath( , = (0, (10, ( = 1; ; ++ = (0, (10, = -rand_num( , (0, (10, rand_num( , = (1, 4 ="" ( 1: = . "+" . 2: = . "-...