negative?()是Ruby中的內置函數,如果有理數小於零,則返回布爾值true,否則返回false。
用法:rat.negative?()
參數:該函數不接受任何參數。
返回值:如果有理數小於零,則返回布爾值true,否則返回false。
例子1:
# Ruby program for negative?() method
# Initialize rational number
rat1 = Rational(-2, 9)
# Prints the rational number
puts rat1.negative?()
輸出:
true
例子2:
# Ruby program for negative?() method
# Initialize rational number
rat1 = Rational('1.23')
# Prints the rational number
puts rat1.negative?()
輸出:
false
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注:本文由純淨天空篩選整理自gopaldave大神的英文原創作品 Ruby | Rational negative?() function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。