js利用split分割截取---1:1(整理)
var string = '1:1';
var before = string.split(':')[0];
var after = string.split(':')[1];
console.log(before, after, 'before-after') // 1 1
var string = '1:1';
var before = string.split(':')[0];
var after = string.split(':')[1];
console.log(before, after, 'before-after') // 1 1