Groovy 关系运算符
关系运算符允许对象的比较。以下是Groovy中可用的关系运算符 -
| 运算符 | 描述 | 例子 |
| == | 测试两个对象之间的等同性 | 2 == 2将得到true |
| != | 测试两个对象之间的差异 | 3！= 2将得到true |
| < | 检查左对象是否小于正确的操作数。 | 2 < 3将得到true |
| <= | 检查左对象是否小于或等于右操作数。 | 2 < 3将得到true |
| > | 检查左对象是否大于右操作数。 | 3 > 2将得到true |
| >= | 检查左对象是否大于或等于右操作数。 | 3 = 2将得到true |
以下代码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，我们将得到以下结果。可以看出，结果如从上面所示的操作符的描述所预期的。
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