在本篇文章里，我们给大家整理了关于python元组打包和解包过程的知识点内容，有兴趣点的朋友们可以跟着学习下。
1、在将多个以逗号分隔的值赋给一个变量时，多个值被打包成一个元组类型。当我们将一个元组赋给多个变量时，它将解包成多个值，然后分别将其赋给相应的变量。
# 打包 a = 1, 10, 100 print(type(a), a) #(1, 10, 100) # 解包 i, j, k = a print(i, j, k) # 1 10 100
2、解包时，如果解包出来的元素数目与变量数目不匹配，就会引发ValueError异常。错误信息为：too many values to unpack（解包的值太多）或not enough values to unpack（解包的值不足）。
a = 1, 10, 100, 1000 # i, j, k = a # ValueError: too many values to unpack (expected 3) # i, j, k, l, m, n = a # ValueError: not enough values to unpack (expected 6, got 4)
知识点扩充：
python之打包，解包
#coding:utf-8 #字符串，列表，元组打包与解包 aString = 'abc' aList = [1, 2, 3] aTuple = 'a', 'A', 1 print('Unpacking string......') first, second, third = aString print("string values:", first, second, third) print('\nUnpacking list......') first, second, third = aList print("string values:", first, second, third) print('\nUnpacking tuple......') first, second, third = aTuple print("string values:", first, second, third) #swapping two values x = 3 y = 4 print('\nBefore swapping: x = %d,y =%d' % (x, y)) #首先将右边的部分打包成一个元组，即（4，3），而后解包指派给变量x,y x, y = y, x #swap Variables print('After swapping: x = %d, y = %d' % (x, y))以上就是python元组打包和解包过程详解的详细内容，更多请关注0133技术站其它相关文章！
