随后的字符必须是字母、数字或下划线。
Subsequent characters must be letters, Numbers, or underscores.
标识符的其他字符必须是字母，数字或下划线。
All other characters in an identifier must be letters, digits, or the underscore.
字段名称只能包含字母、数字或下划线字符。
Field names can contain only letters, Numbers, or the underscore character.
字段名称只能包含字母、数字或下划线字符。
有效的函数名以字母或下划线打头，后面跟字母，数字或下划线。
A valid function name starts with a letter or underscore, followed by any number of letters, Numbers, or underscores.
该名称可以是字母、数字或下划线的任意组合，但名称不能以数字开头且不能包含空格。
The name can be any combination of letters, Numbers, or an underscore that does not start with a number, and it cannot contain Spaces.
任何字母、十进制的数字或标点符号连接器如下划线的单词字符。
A word character is any letter, decimal digit, or punctuation connector such as an underscore.
任何字母、十进制的数字或标点符号连接器如下划线的单词字符。
A word character is any letter, decimal digit, or punctuation connector such as an underscore.
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