Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > 这是什么成效

这是什么成效

WBOY
Release： 2016-06-13 10:45:29
Original
865 people have browsed it

这是什么效果?
1   2 $i = 1/3;
  3 echo $i;
  4 echo '
';
  5 echo $i*3;
  6 echo '
';
  7 echo 0.333333333333*3;
  8 ?>


输出:

0.333333333333
1
0.999999999999

既然$i是0.333333333333 那么他乘以3就应该是0.999999999999 为何是1？

------解决方案--------------------
呵呵，无限循环小数都忘了

Related labels：
echo nbsp
source：php.cn
Previous article：请问动态创建变量方法 Next article：求教PHP怎么链接SQL SERVER2008
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
function_exists() cannot determine the custom function Function test () {return true;} if (function_exists ('test')) {echo "test is function...
From 2024-04-29 11:01:01
0
2
1429
There is no output in the parent window document.onclick = function(){ window.opener.document.write('I am the output of the child ...
From 2024-04-18 23:52:34
0
1
1284
PX automatic conversion to REM error  <style>html {   font-size: calc(100vw / 3.75);      }...
From 2024-04-16 09:34:16
0
0
4687
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template