if

来自「C实现的MUD,对大家基本入门网络游戏很有帮助!」· 代码 · 共 49 行

* The if else statement:

LPC's if statement is identical to that provided by C.  Syntax is as follows:

    if (expression)
        statement;

Alternately:

    if (expression) {
        statements;
    }

Alternately:

    if (expression0) {
        statements;
    } else {
        statements1;
    }

Alternately:

    if (expression0) {
        statements0;
    } else if (expression1) {
        statements1;
    }

The number of else clauses is not explicitly limited.

- - - - -

Another favorite programming construct is the ? : operator, which also
operates identical to C.  The syntax is:

    expression0 ? expression1_if_true : expression2_if_false

In some cases, ? : is an shorter way of expression constructs such as:

    if (expression0)
        var = expression1;
    else
        var = expression2;

which can be equivalently translated to:

    var = expression0 ? expression1 : expression;