Money class
- Implemented types
Constructors
- Money.fromCents(int? cents, {PrecisionMode precisionMode = PrecisionMode.round, NullValueHandling nullValueHandling = NullValueHandling.returnZero})
-
从分初始化（无精度损失，推荐）
factory
- Money.fromString(String? yuanStr, {PrecisionMode precisionMode = PrecisionMode.round, NullValueHandling nullValueHandling = NullValueHandling.returnZero})
-
从字符串初始化（支持空字符串、带空格、货币符号）
factory
- Money.fromYuan(num? yuan, {PrecisionMode precisionMode = PrecisionMode.round, NullValueHandling nullValueHandling = NullValueHandling.returnZero})
-
从元初始化（支持 int/double/null，可配置空值处理）
factory
Properties
- hashCode → int
-
The hash code for this object.
no setteroverride
- isNegative → bool
-
是否为负数（严格小于0）
no setter
- isPositive → bool
-
是否为正数（严格大于0）
no setter
- isZero → bool
-
是否为零
no setter
- precisionMode → PrecisionMode
-
精度模式（取整方式）
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
abs(
) → Money - 绝对值（如 -50 元 → 50 元）
-
compareTo(
Money other) → int -
Compares this object to another object.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toCents(
) → int - 转换为分（int）
-
toDouble(
) → double - 转换为double（同toYuan()）
-
toInt(
) → int - 转换为int（元为单位，向下取整）
-
toJson(
{bool asCents = false}) → Map< String, dynamic> - 序列化为 JSON（包含金额和精度模式，确保反序列化一致）
-
toNum(
) → num - 转换为 num（支持直接赋值给 num 类型变量，显式调用）
-
toString(
) → String -
A string representation of this object.
override
-
toYuan(
) → double - 转换为元（double，按精度模式保留2位小数）
-
toYuanString(
{int maxDigits = 2, bool keepFixedDigits = false}) → String - 转换为元字符串（自动补零，格式："100.00"）
Operators
-
operator %(
num divisor) → Money - Money % int/double（取模运算，结果保留分）
-
operator *(
num multiplier) → Money - Money * int/double（按当前精度模式取整）
-
operator +(
Money other) → Money - Money + Money
-
operator -(
Money other) → Money - Money - Money
-
operator /(
num divisor) → Money - Money / int/double（按当前精度模式取整）
-
operator <(
Money other) → bool - Money < Money
-
operator <=(
Money other) → bool - Money <= Money
-
operator ==(
Object other) → bool -
The equality operator.
override
-
operator >(
Money other) → bool - Money > Money
-
operator >=(
Money other) → bool - Money >= Money
-
operator unary-(
) → Money - 相反数（如 100 元 → -100 元）
Static Methods
-
fromJson(
dynamic json, {PrecisionMode? precisionMode}) → Money - 从 JSON 解析（支持恢复精度模式）