ztt0918的博客

html>html lang="en">head> meta charset="UTF-8"> title>number数据类型title> script type="text/javascript"> var a='123'; alert(typeof a); //parseInt把字符串转成整数 a

html>html lang="en">head> meta charset="UTF-8"> title>title> script type="text/javascript"> var str1='12'; str1=parseInt(str1); var str2='13'; str2=parseI