摘要:
# -int:转换,将字符串转换为数字,但必须是0-9的字符 a = '123' b = int(a) b += 1000 print(type(b)) print(b) c = '0110' d = int(c, base=2) #以2进制转换 print(d) e = 'a' f = int(e 阅读全文
摘要:
算术运算符:+、-、*、**、/、//、% a+=b a=a+b in 和 not in:判断是否包含在某个东西里面 name = "周杰伦" if "周" in name: print("True") else: print("False") if "杰伦" in name: print("Tru 阅读全文