红宝石 |数字 - 方法
–是 Ruby 中的一个内置方法,返回两个数字的减法。它返回 a - b。
Syntax: a – b
Parameters: The function needs two number whose subtraction is returned.
Return Value: It returns the subtraction of two numbers.
示例 1 :
Ruby
# Ruby program for - method in Numeric
# Initialize two numbers
a = 19
b = 4
# Prints a - b
puts a - b
Ruby
# Ruby program for - method in Numeric
# Initialize two numbers
a = 13
b = 2
# Prints a - b
puts a - b
输出:
15
示例 2 :
红宝石
# Ruby program for - method in Numeric
# Initialize two numbers
a = 13
b = 2
# Prints a - b
puts a - b
输出:
1q