我有以下方式给出的样式转换字符串:
矩阵(0.312321, -0.949977, 0.949977, 0.312321, 0, 0)
如何形成包含该矩阵元素的数组？关于如何为此编写正则表达式的任何提示？
最佳答案
我会这样做...
// original string follows exactly this pattern (no spaces at front or back for example)
var string = "matrix(0.312321, -0.949977, 0.949977, 0.312321, 0, 0)";
// firstly replace one or more (+) word characters (\w) followed by `(` at the start (^) with a `[`
// then replace the `)` at the end with `]`
var modified = string.replace(/^\w+\(/,"[").replace(/\)$/,"]");
// this will leave you with a string: "[0.312321, -0.949977, 0.949977, 0.312321, 0, 0]"
// then parse the new string (in the JSON encoded form of an array) as JSON into a variable
var array = JSON.parse(modified)
// check it is correct
console.log(array)
关于javascript - 用于从变换矩阵中选择元素的正则表达式，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11236090/