在 Julia 中访问集合的每个元素 – foreach() 方法

foreach()是 julia 中的内置函数，用于在指定的可迭代 c 的每个元素上调用函数f。

Syntax: foreach(f, c…)

Parameters:

• f: Specified set of instructions.
• c: Specified iterable.

Returns: It returns the result of the operation of function f on each element of the specified iterable c.

示例 1：

# Julia program to illustrate 
# the use of foreach() method
  
# Getting the result of the operation
# of function f on each element of 
# the specified array a.
a = [1, 2, 3];
foreach(x -> println(x ^ 3), a)

输出：

1
8
27

示例 2：

# Julia program to illustrate 
# the use of foreach() method
  
# Getting the result of the operation
# of function f on each element of 
# the specified iterable c.
a = 1:3;
foreach(x -> println(x ^ 2), a)

输出：

1
4
9