Ruby Float negative()方法及示例

flo at negative() 是一个float类的方法，用于检查浮点数是否为负数。

语法： float.negative()

参数： 要检查的浮点数值

返回： 布尔值 如果值是正的，返回false；如果值是负的，返回true。

例子 #1 :

# Ruby code for negative() method
  
# Initializing value
a = -100.7 - 10.4
b = -100 * 2000.0
c = (22 + 7.1) * 4
  
# Printing result
puts "a is negative : #{a.negative?}\n\n"
puts "b is negative : #{b.negative?}\n\n"
puts "c is negative : #{c.negative?}\n\n"

输出:

a is negative : true

b is negative : true

c is negative : false

例子#2 。

# Ruby code for negative() method
  
# Initializing value
a = -56.23333333
b = 10000.0
c = -(22 + 7.1)
  
# Printing Result
puts "a is negative : #{a.negative?}\n\n"
puts "b is negative : #{b.negative?}\n\n"
puts "c is negative : #{c.negative?}\n\n"

输出:

a is negative : true

b is negative : false

c is negative : true