Python，创建一个字符串，元素之间添加逗号

Question

我想在元素之间用逗号创建一个字符串，如下所示：

在：

['ElementA','ElementB','ElementC']

输出：

['ElementA,ElementB,ElementC']

谢谢

Answer 1

Javascript解决方法：

let arr = ['ElementA','ElementB','ElementC'] ;

let arr2 = [arr.join(",")];

console.log(arr2);

Python解法：

arr = ['ElementA','ElementB','ElementC']
separator = ','
arr2 = [separator.join(arr)]
print(arr2)

Python, Make one string with elements adding comas between them