Discuss / Java / []匹配规则？
Back

[]匹配规则？

Topic source

黯然

#1 Created at ... [Delete] [Delete and Lock User] 
"10111".matches("[123456789]\\d{4}")

上面这个表达式返回true，这是为什么

玖书

#2 Created at ... [Delete] [Delete and Lock User]

[123456789]表示匹配第一个字符为其中任意一个, \\d{4}就是匹配任意4个数字

  • 1

Reply