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摘要： task.1 print(sum) sum = 42 print(sum) def inc(n): sum = n+1 print(sum) return sum sum = inc(7) + inc(7) print(sum) About sum：1.内置函数名称 2.赋值名称 3.局部变量 4. 阅读全文

摘要： import random print('用列表储存随机整数：') lst=[random.randint(0,100)for i in range(5)] print(lst) print('\n用集合存储随机整数：') s1={random.randint(0,100)for i in rang 阅读全文

摘要： x = 'nba FIFA' print(x.upper()) print(x.lower()) print(x.swapcase()) x = 'abc' print(x.center(10, '*')) print(x.ljust(10, '*')) print(x.rjust(10, '*') 阅读全文

摘要： print('hey, u') x,y,z = 1,2,3 print(x, y, z) print('x = %d, y = %d, z = %d' %(x,y,z)) print('x = {}, y = {}, z = {}'.format(x,y,z)) print(f'x = {x}, y 阅读全文