i = input('输入坐标').split()
x1, x2, x3, x4 = eval(i[0]), eval(i[1]), eval(i[2]), eval(i[3])
dis = pow((pow(x3 - x1, 2) + pow(x4 - x2, 2)), 0.5)
print(dis)

variable = list(input("输入四个数字：（空格分隔）").split(' '))
x0,y0,x1,y1 = variable[0],variable[1],variable[2],variable[3]
distance = ((eval(x0)-eval(x1))**2 + (eval(y0)-eval(y1))**2)**0.5
print("{:.1f}".format(distance))

from math import sqrt, powdef cal_distance(x1, y1, x2, y2):return sqrt(pow(x1 - x2, 2) + pow(y1 - y2, 2))if __name__ == '__main__':x1, y1, x2, y2 = map(float, input("请输入坐标数字:").split())print(cal_distance(x1, y1, x2, y2))

a = input('input your number:').split()
x0, y0, x1, y1 = int(a[0]), int(a[1]), int(a[2]), int(a[3])
target = float(((y0-y1)**2+(x0-x1)**2)**0.5)
print(target)

import maths1 = input("请输入2个点坐标，用逗号分隔")
lst = s1.split(',')x0 = int(lst[0])
y0 = int(lst[1])
x1 = int(lst[2])
y1 = int(lst[3])a1 = int(pow((x0 - x1), 2))
a2 = int(pow((y0 - y1), 2))
leng = math.sqrt(a1 + a2)print("({0},{1})，({2},{3})之间的距离为{4}" .format(x0, y0, x1, y1, leng))

j = input('请输入课程和成绩').split()
k = {}
sum = 0
for i in range(0, len(j), 2):k[j[i]] = eval(j[i+1])sum += eval(j[i+1])
k1 = sorted(k.items(),key=lambda k : k[1])
print('最高课和成绩：', k1[-1])
print('最低课和成绩：', k1[0])
print('均值：{:.2f}'.format(sum/(len(j)/2)))

info_list = []
scores, subjects = 0, 0
while True:info = input("请输入小明成绩：（以空格分隔；回车结束录入）")if info == '':breakelse:info_list.append(info.split(' '))scores += eval(info.split(' ')[1])subjects += 1
info_list.sort(key=lambda x: x[1], reverse=True)
print("最高分课程是{}：{}，最低分课程是{}：{}，平均分是{:.1f}".format(info_list[0][0], info_list[0][1], info_list[-1][0], info_list[-1][1], scores / subjects))

class Student:name = '姓名'course = 'none'course_score = -1def theHighestScore(self, course_score_list):return max(course_score_list)def theLowestScore(self, course_score_list):return min(course_score_list)def theAverageScore(self, course_score_list):sum = 0for score in course_score_list:sum += scoreaverage_score = sum / len(course_score_list)return average_scoreif __name__ == '__main__':student = Student()student.name = '小明'course_score_dict = {}student.course = list(map(str, input("请先输入课程名:").strip().split()))student.course_score = list(map(float, input("然后请输入课程对应考试分数:").strip().split()))course_score_dict = dict(zip(student.course, student.course_score))print(course_score_dict)theHighestScore = student.theHighestScore(student.course_score)theLowestScore = student.theLowestScore(student.course_score)print('最高分课程是%s %d' % (max(course_score_dict, key=course_score_dict.get), theHighestScore))print('最低分课程是%s %d' % (min(course_score_dict, key=course_score_dict.get), theLowestScore))print('平均分是', student.theAverageScore(student.course_score))

c_s_list = {}  # class & score
sum = 0            # 均值
while True:a = input('input your class && score:')if a == 'esc':for key, value in c_s_list.items():print(key,value)sum += int(value)  # 均值
max_min = sorted(c_s_list.items(), key=lambda s: s[1])print('\n得分最高的课程名称:{}考试分数:{}'.format(max_min[-1][0], max_min[-1][1]))print('得分最低的课程名称:{}考试分数:{}'.format(max_min[0][0], max_min[0][1]))print('均值:%.1f' % (sum/len(c_s_list)))breakelse:b = a.split()c_s_list[b[0]] = b[1]