[微信小程序] js变量名称写活

function create_variable(num){
var name = "test_"+num; //生成函数名
window[name] = 100;
window['name'] = 200; //注意看中括号里的内容加引号和不加引号的区别
}

create_variable(2);
alert(test_2); // 100;
alert(name); //200;