This pattern is a regular expression that means the acceptable value of store ID should begin with ID followed by six digits.
该模式是一个正则表达式，它表示可接受的storeID的值应该以ID开头，后面紧跟着六位数字。
Build a regular expression that describes the expected value format and put it in the pattern attribute.
构建一个说明所期望值格式的正则表达式，并将其放到patter n属性中。
Returns a Boolean value that indicates whether a regular expression pattern exists in a searched string.
返回一个布尔值，它指示在所搜索的字符串中是否存在正则表达式模式。
Returns a Boolean value that indicates whether a regular expression pattern exists in a searched string.
返回一个布尔值，它指示在所搜索的字符串中是否存在正则表达式模式。
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