-= (subtract assign)

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名称

-= (subtract assign)

示例

int
a = 50;

int b = 23;

a -= b;

 // Sets 'a' to 27 
描述 Combines subtraction with assignment. The expression a -= b is equivalent to a = a – b.
语法
 value1 -= value2 
参数
value1 int orfloat
value2 int orfloat
相关 += (add assign)
– (minus)

Updated on October 2, 2018 05:02:16pm EDT

-= (subtract assign)