1.字符串转整数 a='123' b='456' c=int(a)+int(b) print(c) 2.小数转整数 a=12.37576 b=34.48345 c=int(a)+int(b) print(c) 3.整数转小数 a=12 b=34 c=float(a)+float(b) print(c) 4.列表和元组的转换 list=[1,2,3,4,5] print(list) tuple=tuple(list) print(tuple) 运行结果: