python實(shí)現(xiàn)打印類的所有屬性和方法
打印類的所有屬性和方法
利用dir(obj)方法獲得obj對(duì)象的所有屬性和方法名,返回一個(gè)list。
for item in dir(top_k_metergroup): ?#top_k_metergroup是某類的一個(gè)實(shí)例化對(duì)象 ? ? print(item)
__class__ __delattr__ __dict__ __dir__ __doc__ __eq__ __format__ __ge__ __getattribute__ __getitem__ __gt__ __hash__ __init__ __init_subclass__ __le__ __lt__ __module__ __ne__ __new__ __reduce__ __reduce_ex__ __repr__ __setattr__ __sizeof__ __str__ __subclasshook__ __weakref__ _aggregate_metadata_attribute _check_kwargs_for_full_results_and_sections _collect_stats_on_all_meters _convert_physical_quantity_and_ac_type_to_cols _energy_per_meter_with_remainder _meter_generators _plot_area _plot_energy_bar _plot_sankey _plot_separate_lines _prep_kwargs_for_sample_period_and_resample _replace_none_with_meter_timeframe _set_sample_period activation_series activity_histogram all_meters appliances available_ac_types available_physical_quantities available_power_ac_types average_energy_per_period building call_method_on_all_meters clear_cache contains_meters_from_multiple_buildings correlation correlation_of_sum_of_submeters_with_mains dataframe_of_meters dataset describe disabled_meters dominant_appliance dominant_appliances draw_wiring_graph dropout_rate energy_per_meter entropy entropy_per_meter fraction_per_meter from_list from_other_metergroup get_activations get_labels get_timeframe good_sections groupby identifier import_metadata instance is_site_meter label load load_series mains matches matches_appliances meters meters_directly_downstream_of_mains min_off_duration min_on_duration mutual_information name nested_metergroups on_power_threshold pairwise pairwise_correlation pairwise_mutual_information plot plot_activity_histogram plot_autocorrelation plot_good_sections plot_lag plot_multiple plot_power_histogram plot_spectrum plot_when_on power_series power_series_all_data proportion_of_energy proportion_of_energy_submetered proportion_of_upstream proportion_of_upstream_total_per_meter sample_period select select_top_k select_using_appliances simultaneous_switches sort_meters submeters switch_times total_energy train_test_split union upstream_meter uptime use_alternative_mains values_for_appliance_metadata_key vampire_power when_on wiring_graph
python中更多種類的打印
1.print("." * 10) 是輸出10個(gè) "."
把每個(gè)字母相加輸出就可以得到相應(yīng)的字符串。
print("Mary had a little lamb.") print("Its fleece was white as {}." .format('snow')) #將snow放入字符串的相應(yīng)位置 print("And everywhere that Mary went.") print("." * 10) # what'd that do? end1 = "C" end2 = "h" end3 = "e" end4 = "e" end5 = "s" end6 = "e" end7 = "B" end8 = "u" end9 = "r" end10 = "g" end11 = "e" end12 = "r" # watch that comma at the end. try removing it to see what happens print(end1 + end2 + end3 + end4 + end5 + end6, end = ' ' ) # end = ' ' 為連接前后的成分,使其不換行 print(end7 + end8 + end9 + end10 + end11 + end12)
運(yùn)行結(jié)果:
2.用了一個(gè)自定義的函數(shù) formatter
其作用是:
<1>.取第1行定義的 formatter 字符串。
<2>.調(diào)用它的 format 函數(shù),這相當(dāng)于告訴它執(zhí)行一個(gè)叫 format 的命令行命令。
<3>.給 format 傳遞4個(gè)參數(shù),這些參數(shù)和 formatter 變量中的{}匹配,相當(dāng)于將參數(shù)傳遞給了 format 這個(gè)命令。
<4>.在 formatter 上調(diào)用 format的結(jié)果是一個(gè)新字符串,其中的{}被4個(gè)變量替換掉了,這就是 print 現(xiàn)在打印出的結(jié)果。
formatter="{} {} {} {}" print(formatter.format(1,2,3,4)) print(formatter.format("one","two","three","four")) print(formatter.format(True,False,False,True)) print(formatter.format(formatter,formatter,formatter,formatter)) print(formatter.format( "Try your", "Own text here", "Maybe a poem", "or a song about fear" ))
運(yùn)行結(jié)果:
3.這個(gè)主要是講定義的字符串可以直接打印出來(lái)
“\n” 是換行符。
# Here's some new strange stuff, remember type it exactlyself. days = "Mon Tue Wed Thu Fri Sat Sun" months = "\nJan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug" print("Here are the days: ", days) print("here are the months: ", months) print(""" There's something going on here. With the three double-quotes. we'll be able to type as much as we like. Even 4 lines if we want, or 5, or 6. """)
運(yùn)行結(jié)果:
以上為個(gè)人經(jīng)驗(yàn),希望能給大家一個(gè)參考,也希望大家多多支持腳本之家。
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