数字行 meaning in English
number line
numeral row
Examples
- Write a regular expression that will return the decimal part of a numeric string . for extra credit , your expression should fail if the string contains anything other than a number
写一下正规的表达返回小数部分的数字行.特别指出,你注意表达式失败的问题,如是某一行不含任何东西,也要返回一个数字