它不会对数值字段生效，除非这些字段具有一致的长度。
It does not work on numeric fields unless the fields are all the same length.
一个字符被转换为数值形式来存储进数值字段或变量中。
A character value is being converted to numeric form for storage in a numeric column or variable.
创建CSV文件需要定义要使用的分隔符(逗号[，])和要引用的字段；我选择引用所有非数值字段。
Creating the CSV files requires defining which delimiter to use (a comma [,]), and which fields to quote; I opted to quote all non-numeric fields.
按数据结构或程序设计的要求，将一个或几个字符向左或向右移动，例如将星号移到数值字段的左边或右边。
To move or shift one or several characters into positions to the right or left as determined by data structure or programming desires; e. g., float asterisks to the right or left of numerical fields.
按数据结构或程序设计的要求，将一个或几个字符向左或向右移动，例如将星号移到数值字段的左边或右边。
To move or shift one or several characters into positions to the right or left as determined by data structure or programming desires; e. g., float asterisks to the right or left of numerical fields.
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