Ruby Float zero?() 方法与示例

Float#zero() : zero()是一个浮点类方法，用于检查浮点值是否为零。

Syntax: float.zero()

Parameter:float value which is to be checked

Return: Boolean value return true if value is zero otherwise return false

示例 #1：

# Ruby code for zero?() method
  
# Initializing value 
a = -100.7 * 0
b = -0
c = (22 + 7.1) * 4
   
# Printing  a
puts "a is zero : #{a.zero?}\n\n"
   
# Printing b
puts "b is zero : #{b.zero?}\n\n"
   
# Printing c
puts "c is zero : #{c.zero?}\n\n"

输出 ：

a is zero : true

b is zero : true

c is zero : false

示例 #2：

# Ruby code for zero?() method
  
# Initializing value 
a = 2.0
b = 0.000000001
  
# Printing result 
puts "a is zero : #{a.zero?}\n\n"
puts "b is zero : #{b.zero?}\n\n"

输出 ：

a is zero : false

b is zero : false