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[编程技巧] 怎么把字符串'FFFFFFFD'转化为十进制数-3啊? |
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是-3的补码形式,如果把FFFFFFFD做为32位有符号数(最高位为符号位)即为-3 | ||
发表于 2006-11-23 17:27
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发表于 2006-11-23 18:18
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