Perl | Math::BigInt- >骨()法
原文:https://www.geeksforgeeks.org/perl-mathbigint-bone-method/
**Math::BigInt**
Perl 中的模块提供了用任意精度和重载算术运算符表示整数的对象。
bone() 方法的 Math::BigInt
模块用于创建一个值为 1 的新对象,如果在现有对象上使用,它会将其设置为 1。
语法:数学:BigInt- >骨()
参数: 加减:将一的符号设置为“+”或“-”
返回:值为 1 的对象
例 1:
#!/usr/bin/perl
# Import Math::BigInt module
use Math::BigInt;
# Create a BigInt object
$x = Math::BigInt->bone();
# Object created with bone()
print("$x\n");
# Create a BigInt object
$x = Math::BigInt->bone('-');
# Object created with bone()
print("$x");
Output:
1
-1
例 2:
#!/usr/bin/perl
# Import Math::BigInt module
use Math::BigInt;
# Specify number
$num = 78215936043546;
# Create BigInt object
$x = Math::BigInt->new($num);
# Object before function call
print("Before function call: $x\n");
# Calling the function
$x->bone();
# Object after function call
print("After function call: $x");
Output:
Before function call: 78215936043546
After function call: 1
例 3:
#!/usr/bin/perl
# Import Math::BigInt module
use Math::BigInt;
# Specify number
$num = 78215936043546;
# Create BigInt object
$x = Math::BigInt->new($num);
# Object before function call
print("Before function call: $x\n");
# Calling the function with '-' sign
$x->bone('-');
# Object after function call
print("After function call: $x");
Output:
Before function call: 78215936043546
After function call: -1