python的基础用法1.列表的用法L [‘P’, ‘Y’, ‘T’, ‘H’, ‘O’]L[1:5] [‘y’, ‘t’, ‘h’, ‘o’]L.pop()L.pop(0)L.index(‘x’) # 返回首个 ‘x’ 的下标L.remove(‘x’) # 删除首个 ‘x’L.count(‘x’) # 统计 ‘x’ 的个数‘x’ in L # 判断 ‘x’ 是否在列表中L.reverse() # 列表逆序L.sort() # 列表排序2.判断是否为素数x int(input(“x”))if x 1:print(“false”)for i in range(2, x):if i x and x % i 0: print(no) break else: print(yes) break3.列举出1–100所有素数的两种方法for x in range(2, 101):if x 2:continuea Truefor i in range(2, x):if x % i 0:a Falsebreakif a True:print(“”, x)2def a(n): # 1个用法if n 2:return Falsefor i in range(2, n):if n % i 0:return Falsereturn Trueb [n for n in range(2, 101) if a(n)]print(b)