ifnum between1and10: print("The number is between 1 and 10") else: print("The number is not between 1 and 10") 2. 除了判断一个值是否在范围内,我们还可以使用”between”来判断一个值是否在两个指定的值之间。语法如下: value between value1andvalue2 例如,我们想要判断一个字符是否在’a’和...
map(plt.plot, 'years', 'value') # 面积图 g = g.map(plt.fill_between, 'years', 'value', alpha=0.2).set_titles("{col_name} country") # 标题 g = g.set_titles("{col_name}") # 总标题 plt.subplots_adjust(top=0.92) g = g.fig.suptitle('Evolution of the value of stuff in ...
import plotly.graph_objects as goimport json# 读取数据with open('sankey_energy.json') as f:data = json.load(f)# 透明度opacity = 0.4# 颜色data['data'][0]['node']['color'] = ['rgba(255,0,255, 0.8)'if color == "magenta"else color for color in data['data'][0]['node']['co...
Strings can beconcatenatedto build longer strings using the plus sign and also they can bemultipliedby a number, which results in the continuous repetition of the string as many times as the number indicates. Also, if we want to find out thelengthof the string, we simply have to use thelen...
默认值会是· Start值为0· End为字符串末尾· step值为1以下是一个例子：# We can easily create a new list from# the first two elements of a list:first_two = [1, 2, 3, 4, 5][0:2]print(first_two)# [1, 2]# And if we use a step value of 2,# we can skip...
number = input('Enter a number between 1 and 10 :')ifnumber <= 10andnumber > 1:print'Great!'else:print'Wrong!'#输出如下Enter a number between 1and10 : 8Great! and运算符在两者都为真时返回真,否则返回假,与and类似的还有or(或)和not(否) ...
def interval_to_value(val):if val <= 100:return 0 elif 100 < val <= 300:return 1 elif 300 < val <= 500:return 2 elif 500 < val <= 800:return 3 elif 800 < val <= 1000:return 4 elif val > 1000:return 5 更优雅的方法是使用bisect_left:def interval_to_value(val):return ...
if __debug__: if not expression1: raise AssertionError(expression2) 补充:__debug__内置常量 正常情况下为True,在以-O运行方式中为False -O运行方式用于移除assert语句以及任何以__debug__的值作为条件的代码 示例: a=input('输入a的值:')b=input('输入b的值:')asserta==b,'a不等于b'print('a等...
$ python findif.py and press enter. Then the plot window will appear. You can try to change the boundary condition's value, for example you change the value of right edge temperature to 30 degree Celcius (Tright = 30), then the result will look like this 代码如下 import matplotlib.pypl...
内置英语帮助 >>> import random>>> [eval(f'print("No.",i+1,":"),help(random.{j})') for i,j in enumerate([i for i in dir(random) if i[0]>='a'])] 运行结果如下,一共22个函数: No. 1 :Help on method betavariate in module random:betavariate(alpha, beta) method of random....