Python
3 << 29
# 1610612736
3 << 30
# 3221225472L
JavaScript
3 << 29
// 1610612736
3 << 30
// -1073741824
为什么 JavaScript 位运算左移会输出负数?
This topic created in 2900 days ago, the information mentioned may be changed or developed.
4 replies
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1
geelaw Jul 1, 2018  1
搜索 javascript left shift
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_Operators Bitwise operators treat their operands as a sequence of 32 bits (zeroes and ones). ... Bitwise operators perform their operations on such binary representations, but they return standard JavaScript numerical values. ... Signed 32-bit integers The operands of all bitwise operators are converted to signed 32-bit integers in two's complement format. |
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2
mooncakejs Jul 1, 2018
应该是 python 为什么不是负数吧
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3
MiffyLiye Jul 1, 2018 1
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4
MiffyLiye Jul 1, 2018 1
而 Python 里整数是无限长的
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