Question

I'm beginning javascript and i do some exercise to train my self, but i've a 
problem.
My code had to ask the time to the user and give the time one seconde after 
the time entered.
And my code shows my always "temps erroné" (that mean ~wrong time).
Here's my code :

向用户询问时间

var hour = Number(prompt("heure actuelle?"));
var minute = Number(prompt("minute actuelle?"));
var seconde = Number(prompt("seconde actuelle?"));

//这个函数就像一个控件，如果输入的时间是错误的函数是假的

 function isTimeValid(hour, minute, seconde){
  if((hour >= 24) || (hour < 0)) {
  return false
  }
  if((minute < 0) || (minute >= 60)) {
   return false
  }
  if((seconde >= 60) || (seconde < 0)) {
  return false

  }
  else {
    return true
  }
}

此功能修改时间

function displayNextHour(hour, minute, seconde){
if((seconde >= 0) && (seconde < 59)) {
  seconde++;
} else if(seconde === 59) {
  seconde = 0
  minute++
  }
if(minute === 60) {
  minute = 0
  hour++
  }
if(hour === 24) {
  hour = 0
  }
 var time = "Il est " + hour + "h " + minute + "m " + seconde + "s";
 return time
}

最后一部分午餐功能

if(isTimeValid()){
 console.log(displayNextHour(hour, minute, seconde))
}else{
  console.log("temps erroné")
}

所以，如果你能帮助我，那对我的javascript学习非常有帮助：D

Answer 1

您没有将参数传递给函数

替换

if(isTimeValid())

与

if(isTimeValid(hour, minute, seconde))

Answer 2

你没有传递像迈克所说的论点，你的代码中还有另一个错误。您可以控制“isTimeValid”中的小时数（= 24）和分钟数（= 60），但下一个小时数函数控制此参数时出错。下面的代码修复了它。

function displayNextHour(hour, minute, seconde){
 if((seconde >= 0) && (seconde < 59)) {
  seconde++;
} else if(seconde === 59) {
  seconde = 0
  minute++
  }
if(minute === 59) {
  minute = 0
  hour++
  }
if(hour === 23) {
  hour = 0
  }
 var time = "Il est " + hour + "h " + minute + "m " + seconde + "s";
 return time
}

我的代码不起作用

2 个答案: