substring的用法和樣例：
例句
用作名詞 (n.)
- String character used to identify substring limits.
用于標識子字符串邊界的字符串字符。 - The first argument is the substring that matched.
第一個(gè)參數是匹配的子字符串。
詞匯搭配
- character array element substring name 字符數組元素子串名...
- array substring reference 數組子串引用...
- character array substring reference 字符數組子串引用...
- character array element substring 字符數組元素子串...
- character variable substring 字符變量子串...
