number group meaning in English
号码群
号码组
Examples
- Specifies that the only valid captures are explicitly named or numbered groups of the form
指定唯一有效的捕获是显式命名或编号的 - Specifies that the only valid captures are explicitly named or numbered groups of the form ? name
指定有效的捕获仅为形式为( ? < name > . . . )的显式命名或编号的组。 - Thousand separator specifier : if one or more , characters is specified between two digit placeholders 0 or that format the integral digits of a number , a group separator character is inserted between each number group in the integral part of the output
首先，如果格式字符串在小数点（如果有）左边的两个数字占位符（ 0或）之间包含“ , ”字符，则输出将在小数点分隔符左边的每三个数字之间插入千位分隔符。