Unsigned Right Shift Assignment Operator
Right shifts the value of a variable by the number of bits specified in the value of an expression, without maintaining sign, and assigns the result to the variable.
语法
result >>>= expression
参数
result
Any variable.
expression
Any expression.
备注
Using the >>>= operator is exactly the same as doing the following:
result = result >>> expression
The >>>= operator shifts the bits of result right by the number of bits specified inexpression. Zeroes are filled in from the left. Digits shifted off the right are discarded. For example:
var temp temp = -14 temp >>>= 2
The variable temp has an initial value of -14 (11111111 11111111 11111111 11110010 in two's complement binary). When shifted right two bits, the value equals 1073741820 (00111111 11111111 11111111 11111100 in binary).
必备条件
在以下文档模式中受支持:怪异模式、Internet Explorer 6标准模式、Internet Explorer 7标准模式、Internet Explorer 8标准模式、Internet Explorer 9标准模式、Internet Explorer 10标准模式、Internet Explorer 11标准模式。应用商店应用(Windows 8和Windows Phone 8.1)中也受支持。请参阅版本信息。