時(shí)間戳

1: import time 2: print(time.time())

可讀的時(shí)間格式

1: import time 2: print(time.ctime()) 3: later = time.time() + 600 4: print(time.ctime(later))

結(jié)果

1: Wed Jan 30 17:11:49 2019 2: Wed Jan 30 17:21:49 2019

暫停程序(進(jìn)程或者線程)

1: time.sleep(secs)

計(jì)時(shí)時(shí)鐘

1: import time 2: start = time.monotonic() 3: time.sleep(0.1) 4: end = time.monotonic() 5: print("start:", start) 6: print("end:", end) 7: print("span:", end - start)

結(jié)果

1: start: 18363.609 2: end: 18363.718 3: span: 0.10900000000037835

處理器時(shí)鐘時(shí)間

反應(yīng)的是程序運(yùn)行實(shí)際使用的時(shí)間

1: time.clock()

組成時(shí)間格式

time模塊定義struct_time來(lái)保存日期和時(shí)間值。

gmtime()函數(shù)以UTC格式返回當(dāng)前時(shí)間。localtime應(yīng)用當(dāng)前時(shí)區(qū)的當(dāng)前時(shí)間。mktime取一個(gè)實(shí)例轉(zhuǎn)化為時(shí)間戳浮點(diǎn)數(shù)。

1: import time 2: print(time.gmtime()) 3: print(time.gmtime().tm_mon) 4: print(time.localtime()) 5: print(time.localtime().tm_yday) 6: print(time.mktime(time.localtime()))

結(jié)果：

1: time.struct_time(tm_year=2019, tm_mon=1, tm_mday=30, tm_hour=9, tm_min=32, tm_sec=17, tm_wday=2, tm_yday=30, tm_isdst=0) 2: 1 3: time.struct_time(tm_year=2019, tm_mon=1, tm_mday=30, tm_hour=17, tm_min=32, tm_sec=17, tm_wday=2, tm_yday=30, tm_isdst=0) 4: 30 5: 1548840737.0

解析和格式化時(shí)間

函數(shù)strptime和strftime可以在時(shí)間值的struct_time表示和字符串表示之間轉(zhuǎn)換。

1: import time 2: now = time.ctime() 3: print("now:", now) 4: parsed = time.strptime(now) 5: print("parsed time:", parsed) 6: print(parsed.tm_year, parsed.tm_mon, parsed.tm_mday) 7: print("formatted time:", time.strftime("%a-%b-%d-%H:%M:%S %Y", parsed))

結(jié)果

1: now: Wed Jan 30 17:42:07 2019 2: parsed time: time.struct_time(tm_year=2019, tm_mon=1, tm_mday=30, tm_hour=17, tm_min=42, tm_sec=7, tm_wday=2, tm_yday=30, tm_isdst=-1) 3: 2019 1 30 4: formatted time: Wed-Jan-30-17:42:07 2019

轉(zhuǎn)載于:https://www.cnblogs.com/haoqirui/p/10339208.html

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