A trailing character after a literal value establishes its type.

字面值后的尾随字符标志着它的类型。

youdao

Note that you don' t need to use the trailing character when the compiler can figure out the appropriate type.

注意如果编译器能够正确地识别类型，就不必使用尾随字符。

youdao

The next if statement will remove the trailing "any word character section" to produce (s)(\w)+(m)(\w)+(l).

接下来的 if 语句将删除后置的 “任何字符部分” 以生成 (s)(\w)+(m)(\w)+(l)。

youdao