释义 |
1 ?字符运算 ... 字符偏置 character offset 字符运算 character operator 字序 character order ...
- 1
If the character is an operator, pop two operands, perform the appropriate operation, and then push the result onto the stack. 如果字符是个操作符,弹出两个操作数,执行恰当操作,然后把结果压入堆栈。 - 2
The ? operator works in the shell, too, but is interpreted as ., or match any single character. 操作符在 Shell 中也可以工作,但是被解释为 .,即匹配任意单个字符。 - 3
If the character is an operator, pop operators until you reach an opening parenthesis, an operator of lower precedence, or a right associative symbol of equal precedence. 如果字符是个操作符,弹出(pop)操作符,直至遇见开括号(opening parenthesis)、优先级较低的操作符或者同一优先级的右结合符号。
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