To move or shift one or several characters into positions to the right or left as determined by data structure or programming desires; e. g., float asterisks to the right or left of numerical fields.
按数据结构或程序设计的要求，将一个或几个字符向左或向右移动，例如将星号移到数值字段的左边或右边。
In an arithmetic left shift, the bits shifted beyond the range of the result data type are discarded, and the bit positions vacated on the right are set to zero.
在算术左移位中，位元移动的范围若超过结果资料型别会予以舍弃，而且右方空出的位元位置会设定成零。
In an arithmetic left shift, the bits shifted beyond the range of the result data type are discarded, and the bit positions vacated on the right are set to zero.
在算术左移位中，位元移动的范围若超过结果资料型别会予以舍弃，而且右方空出的位元位置会设定成零。
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