如何打印在for循环中声明的变量？

for (var i = 0; i < 5; i++) {
  var variable = "Hello";
  console.log(variable);
}

var variable;
for (var i = 0; i < 5; i++) {
  variable = "Hello";
}
console.log(variable);

var array = [];
for (var i = 0; i < 5; i++) {
  var variable = "Hello";
  array.push(variable);
}
console.log(array);