这句计算year的实际值，存放在tm_year中的数据并非直接是记年。说明info中的tm_year的记年是从1900年开始的，如果info->tm_year=0，则代表1900年。
这tm_year 场相对于1900年 全部 符合POSIX的平台,而不仅仅是MacOS。 这struct tm 专为解析,显示和操纵人类可读日期而设计。创建时,日期通常是编写的,甚至在没有本年度“ 19”部分的情况下存储,而Y2K的问题约为25年。因此, tm_year 直接可打印为两个数字,通过使其相对于1900年,当时显然显然是合理的。 UNIX时...
1900年1月1日为标准，获取时间指离这个时间的间隔
返回结构tm代表本地时间 */ struct tm * mylocaltime(const time_t * timep){time_t time;time=...
TMIN None 25–50y 1900–2016*** peak = 42y None None DTR None None None None Note: Each entry shows cycles that achieve global significance (p < .1); their transient behaviours; and the band as well as peak period of significance. Only cycles with peak periods <45 years are ...
T De Wyzewa,P Signac,P Gauguin,... - 《Art in Theory An Anthology of Changing Ideas》 被引量: 310发表: 1992年 The August Perseids of 1900 OBSERVATIONS of this well-known annual display were much hindered by moonlight, though the weather was generally clear at about the time of the ma...
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