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C 简写 If Else


简写 If...Else(三元运算符)

还有一种简写 if else,被称为 **三元运算符**,因为它包含三个操作数。它可以用来用一行代码替换多行代码。它通常用于替换简单的 if else 语句。

语法

变量 = (条件) ? 表达式真 : 表达式假;

而不是编写

例子

int time = 20;
if (time < 18) {
  printf("Good day.");
} else {
  printf("Good evening.");
}
亲自尝试 »

你可以简单地写成

例子

int time = 20;
(time < 18) ? printf("Good day.") : printf("Good evening.");
亲自尝试 »

您可以选择使用传统的 if...else 语句或三元运算符,完全取决于您。




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