Groovy - 关系运算符
关系运算符允许比较对象。 以下是 Groovy 中可用的关系运算符 −
| 运算符 | 描述 | 示例 |
|---|---|---|
| == | 测试两个对象之间的相等性 | 2 == 2 将给出 true |
| != | 测试两个对象之间的差异 | 3 != 2 将给出 true |
| < | 检查左边的对象是否小于右边的操作数。 | 2 < 3 将给出 true |
| <= | 检查左侧对象是否小于或等于右侧操作数。 | 2 <= 3 将给出 true |
| > | 检查左侧对象是否大于右侧操作数。 | 3 > 2 将给出 true |
| >= | 检查左侧对象是否大于或等于右侧操作数。 | 3 >= 2 将给出 true |
以下代码片段显示了如何使用各种运算符。
class Example {
static void main(String[] args) {
def x = 5;
def y = 10;
def z = 8;
if(x == y) {
println("x is equal to y");
} else
println("x is not equal to y");
if(z != y) {
println("z is not equal to y");
} else
println("z is equal to y");
if(z != y) {
println("z is not equal to y");
} else
println("z is equal to y");
if(z<y) {
println("z is less than y");
} else
println("z is greater than y");
if(x<=y) {
println("x is less than y");
} else
println("x is greater than y");
if(x>y) {
println("x is greater than y");
} else
println("x is less than y");
if(x>=y) {
println("x is greater or equal to y");
} else
println("x is less than y");
}
}
当我们运行上面的程序时，我们会得到如下结果。 从上面的算子描述可以看出，结果和预期的一样。
x is not equal to y z is not equal to y z is not equal to y z is less than y x is less than y x is less than y x is less than y
