python 鏁板瓧，,鏍囩锛?/p>py

python 鏁板瓧，,鏍囩锛?/p>py

鏍囩锛?/p>

python鏁板瓧锛?/p>

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 1 # coding:utf-8 2  3 # python鏁板瓧绫诲瀷杞崲 4 def data_conversion(): 5     """ 6     int(x [,base ])         灏唜杞崲涓轰竴涓暣鏁? 7     long(x [,base ])        灏唜杞崲涓轰竴涓暱鏁存暟 8     float(x )               灏唜杞崲鍒颁竴涓诞鐐规暟 9     complex(real [,imag ])  鍒涘缓涓€涓鏁?10     str(x )                 灏嗗璞?x 杞崲涓哄瓧绗︿覆11     repr(x )                灏嗗璞?x 杞崲涓鸿〃杈惧紡瀛楃涓?12     eval(str )              鐢ㄦ潵璁＄畻鍦ㄥ瓧绗︿覆涓殑鏈夋晥Python琛ㄨ揪寮?骞惰繑鍥炰竴涓璞?13     tuple(s )               灏嗗簭鍒?s 杞崲涓轰竴涓厓缁?14     list(s )                灏嗗簭鍒?s 杞崲涓轰竴涓垪琛?15     chr(x )                 灏嗕竴涓暣鏁拌浆鎹负涓€涓瓧绗?16     unichr(x )              灏嗕竴涓暣鏁拌浆鎹负Unicode瀛楃17     ord(x )                 灏嗕竴涓瓧绗﹁浆鎹负瀹冪殑鏁存暟鍊?18     hex(x )                 灏嗕竴涓暣鏁拌浆鎹负涓€涓崄鍏繘鍒跺瓧绗︿覆19     oct(x )                 灏嗕竴涓暣鏁拌浆鎹负涓€涓叓杩涘埗瀛楃涓?20     :return:21     """22     # 瀛楃涓茶浆鏁板瓧23     print int(鈥?/span>89鈥?/span>)24 25     # 琛ㄨ揪寮忚浆鎹㈡垚琛ㄨ揪寮忓瓧绗︿覆26     print repr(123+234)27     print type(repr(123+234))28 29     # 璁＄畻瀛楃涓茶〃杈惧紡30     str = "2*3+4"31     s = eval(str)32     # eval(reprz(str)锛?= str33     s1 = eval(repr(str))34     print s35     print s136     print type(s1)37 38     s3 = "abcdefg"39     print tuple(s3)40     print list(s3)41 42     print chr(65)43     print ord(鈥?/span>a鈥?/span>)44     print unichr(65)45 46 # python鏁板瓧鍑芥暟47 def numeric_function():48     """49     abs(x)    杩斿洖鏁板瓧鐨勭粷瀵瑰€硷紝濡俛bs(-10) 杩斿洖 1050     ceil(x)    杩斿洖鏁板瓧鐨勪笂鍏ユ暣鏁帮紝濡俶ath.ceil(4.1) 杩斿洖 551     cmp(x, y)    濡傛灉 x < y 杩斿洖 -1, 濡傛灉 x == y 杩斿洖 0, 濡傛灉 x > y 杩斿洖 152     exp(x)    杩斿洖e鐨剎娆″箓(ex),濡俶ath.exp(1) 杩斿洖2.71828182845904553     fabs(x)    杩斿洖鏁板瓧鐨勭粷瀵瑰€硷紝濡俶ath.fabs(-10) 杩斿洖10.054     floor(x)    杩斿洖鏁板瓧鐨勪笅鑸嶆暣鏁帮紝濡俶ath.floor(4.9)杩斿洖 455     log(x)    濡俶ath.log(math.e)杩斿洖1.0,math.log(100,10)杩斿洖2.056     log10(x)    杩斿洖浠?0涓哄熀鏁扮殑x鐨勫鏁帮紝濡俶ath.log10(100)杩斿洖 2.057     max(x1, x2,...)    杩斿洖缁欏畾鍙傛暟鐨勬渶澶у€硷紝鍙傛暟鍙互涓哄簭鍒椼€?58     min(x1, x2,...)    杩斿洖缁欏畾鍙傛暟鐨勬渶灏忓€硷紝鍙傛暟鍙互涓哄簭鍒椼€?59     modf(x)    杩斿洖x鐨勬暣鏁伴儴鍒嗕笌灏忔暟閮ㄥ垎锛屼袱閮ㄥ垎鐨勬暟鍊肩鍙蜂笌x鐩稿悓锛屾暣鏁伴儴鍒嗕互娴偣鍨嬭〃绀恒€?60     pow(x, y)    x**y 杩愮畻鍚庣殑鍊笺€?61     round(x [,n])    杩斿洖娴偣鏁皒鐨勫洓鑸嶄簲鍏ュ€硷紝濡傜粰鍑簄鍊硷紝鍒欎唬琛ㄨ垗鍏ュ埌灏忔暟鐐瑰悗鐨勪綅鏁般€?62     sqrt(x)    杩斿洖鏁板瓧x鐨勫钩鏂规牴锛屾暟瀛楀彲浠ヤ负璐熸暟锛岃繑鍥炵被鍨嬩负瀹炴暟锛屽math.sqrt(4)杩斿洖 2+0j63     :return:64     """65     import math66     print 鈥?/span>abs(%i) = %i鈥?/span> %(-10, abs(-10))67     print 鈥?/span>math.fabs(%i) = %f鈥?/span> % (-10, math.fabs(-10))68 69     print 鈥?/span>round(3.1415926) = %s鈥?/span> % (round(3.1415926,3))70     print 鈥?/span>math.ceil(1.1) = 鈥?/span>, (math.ceil(1.1))71     print 鈥?/span>math.floor(1.9) = 鈥?/span>,math.floor(1.9)72     print 鈥?/span>math.modf(1.9) = 鈥?/span>,math.modf(1.9)    # 杩斿洖灏忔暟鍜屾暣鏁伴儴鍒?/span>73 74     print cmp(1,1)75     print cmp(1,2)76     print cmp(4,1)77 78 def numeric_random():79     """80     choice(seq)    浠庡簭鍒楃殑鍏冪礌涓殢鏈烘寫閫変竴涓厓绱狅紝姣斿random.choice(range(10))锛屼粠0鍒?涓殢鏈烘寫閫変竴涓暣鏁般€?81     randrange ([start,] stop [,step])    浠庢寚瀹氳寖鍥村唴锛屾寜鎸囧畾鍩烘暟閫掑鐨勯泦鍚堜腑鑾峰彇涓€涓殢鏈烘暟锛屽熀鏁扮己鐪佸€间负182     random()    闅忔満鐢熸垚涓嬩竴涓疄鏁帮紝瀹冨湪[0,1)鑼冨洿鍐呫€?83     seed([x])    鏀瑰彉闅忔満鏁扮敓鎴愬櫒鐨勭瀛恠eed銆傚鏋滀綘涓嶄簡瑙ｅ叾鍘熺悊锛屼綘涓嶅繀鐗瑰埆鍘昏瀹歴eed锛孭ython浼氬府浣犻€夋嫨seed銆?84     shuffle(lst)    灏嗗簭鍒楃殑鎵€鏈夊厓绱犻殢鏈烘帓搴?85     uniform(x, y)    闅忔満鐢熸垚涓嬩竴涓疄鏁帮紝瀹冨湪[x,y]鑼冨洿鍐呫€?86     :return:87     """88     import random89     print 鈥?/span>random.choice(range(10)) = 鈥?/span>,random.choice(range(10))90     print 鈥?/span>random.randrange(0,10,2) = 鈥?/span>,random.randrange(0,10,2)91     print 鈥?/span>random.random() = 鈥?/span>,random.random() # 闅忔満鐢熸垚 [0,1锛?/span>92 93     print int(round(random.random(), 2)*100) # 闅忔満鐢熸垚[0,100]94 95     print 鈥?/span>random.uniform(5,10) = 鈥?/span>,random.uniform(5,10) # 杩斿洖float鍨?/span>

python 鏁板瓧

鏍囩锛?/p>

鍘熸枃鍦板潃锛歨ttp://www.cnblogs.com/ponyliu/p/5246628.html