Left-shift operator C #

 << left shift operator.
It is simple to understand with the operation variables of the n-th power of 2.
For example
X = X <<. 1 2 *
X * X = 2. 4 <<
X = X <<. 3. 8 *
X * X = 16. 4 <<
so on 
 
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Origin www.cnblogs.com/ZbsCc/p/11576533.html