求正值表达式写法 我要验证一个1~200的值 什么搞呀 ([1-9]{1}[0-9]{0,3}|10000)这个怎么不行呀?为什么/[a-b]{1}/输入aa也可以通过?还有一个要验证7000~1500000的一个, 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 1. 0-2000~99: (?!\d{3})\d+100~199: 1\d\d200: 200于是,0-200 表达式: \b((?!\d{3})\d+|1\d\d|200)\b测试工具:(推荐)http://www.regexlab.com/zh/workshop.asp?pat=%5Cb%28%28%3F%21%5Cd%7B3%7D%29%5Cd%2B%7C1%5Cd%5Cd%7C200%29%5Cb&txt=0%2C1%2C...199%2C200%2C201%2C202%2C...%2C1999%2C20002. /[a-b]{1}/ 输入 aa实际上只匹配了一个"a",但匹配结果也算匹配成功。如果只能为一个 "a" 或者 "b",那么需要在表达式的两边加上 "^...$" 或者 "\b...\b"3. 7000~15000007000~9999:(?=\d{4}(?!\d))[7,8,9]\d+10000~999999:(?=\d{5,6}(?!\d))\d+1000000~1499999:(?=\d{7}(?!\d))1[0-4]\d+1500000:1500000于是:\b((?=\d{4}(?!\d))[7,8,9]\d+|(?=\d{5,6}(?!\d))\d+|(?=\d{7}(?!\d))1[0-4]\d+|1500000)\b测试工具:(推荐)http://www.regexlab.com/zh/workshop.asp?pat=%5Cb%28%28%3F%3D%5Cd%7B4%7D%28%3F%21%5Cd%29%29%5B7%2C8%2C9%5D%5Cd%2B%7C%28%3F%3D%5Cd%7B5%2C6%7D%28%3F%21%5Cd%29%29%5Cd%2B%7C%28%3F%3D%5Cd%7B7%7D%28%3F%21%5Cd%29%291%5B0-4%5D%5Cd%2B%7C1500000%29%5Cb&txt=6999%2C7000%2C10000%2C1400000%2C1500000%2C15000014. 更多正则表达式帮助,欢迎参考正则表达式入门文档:(推荐)http://www.regexlab.com/zh/regref.htm 3. 7000~15000007000~9999:(?=\d{4}(?!\d))[7,8,9]\d+10000~999999:(?=\d{5,6}(?!\d))\d+1000000~1499999:(?=\d{7}(?!\d))1[0-4]\d+1500000:1500000看到 7000~9999:(?=\d{4}(?!\d))[7,8,9]\d+这里的(?!\d)是干什么用的呀,不能为数字吗?好像加不加没有什么区别了 阿里旺旺的通讯协议是xmpp吗? linux下解析带空格的rar文件 java能否定义固定第二维数值的数组类型? new接口能这样吗? 打印1到100的数 小弟的新编程网站,鼓励一下!!! 请问谁在参加Robocode 的设计啊?大家进来说说 关于类 如何去掉IE浏览器上面三行工具栏 如何在储存过程中实现分页? 关于jsp页面刷新和点击地址栏右边的箭头的区别? java 有没有和H.323协议有关的开发类库???
100~199: 1\d\d
200: 200于是,0-200 表达式: \b((?!\d{3})\d+|1\d\d|200)\b测试工具:(推荐)
http://www.regexlab.com/zh/workshop.asp?pat=%5Cb%28%28%3F%21%5Cd%7B3%7D%29%5Cd%2B%7C1%5Cd%5Cd%7C200%29%5Cb&txt=0%2C1%2C...199%2C200%2C201%2C202%2C...%2C1999%2C20002. /[a-b]{1}/ 输入 aa实际上只匹配了一个"a",但匹配结果也算匹配成功。如果只能为一个 "a" 或者 "b",那么需要在表达式的两边加上 "^...$" 或者 "\b...\b"3. 7000~15000007000~9999:(?=\d{4}(?!\d))[7,8,9]\d+
10000~999999:(?=\d{5,6}(?!\d))\d+
1000000~1499999:(?=\d{7}(?!\d))1[0-4]\d+
1500000:1500000于是:\b((?=\d{4}(?!\d))[7,8,9]\d+|(?=\d{5,6}(?!\d))\d+|(?=\d{7}(?!\d))1[0-4]\d+|1500000)\b测试工具:(推荐)
http://www.regexlab.com/zh/workshop.asp?pat=%5Cb%28%28%3F%3D%5Cd%7B4%7D%28%3F%21%5Cd%29%29%5B7%2C8%2C9%5D%5Cd%2B%7C%28%3F%3D%5Cd%7B5%2C6%7D%28%3F%21%5Cd%29%29%5Cd%2B%7C%28%3F%3D%5Cd%7B7%7D%28%3F%21%5Cd%29%291%5B0-4%5D%5Cd%2B%7C1500000%29%5Cb&txt=6999%2C7000%2C10000%2C1400000%2C1500000%2C15000014. 更多正则表达式帮助,欢迎参考正则表达式入门文档:(推荐)
http://www.regexlab.com/zh/regref.htm
10000~999999:(?=\d{5,6}(?!\d))\d+
1000000~1499999:(?=\d{7}(?!\d))1[0-4]\d+
1500000:1500000看到 7000~9999:(?=\d{4}(?!\d))[7,8,9]\d+
这里的(?!\d)是干什么用的呀,
不能为数字吗?
好像加不加没有什么区别了