Javascript 为什么这种情况不能正常工作?
我必须做一个数字猜谜游戏,你有三次尝试去猜1到5之间的数字。在每次猜错之后,它会告诉你还有多少次尝试。当你猜对了,你会收到一条祝贺信息。当你猜不出的时候,你会得到一个信息。然而,我无法得到消息时,你运行的猜测。为什么它不运行Javascript 为什么这种情况不能正常工作?,javascript,Javascript,我必须做一个数字猜谜游戏,你有三次尝试去猜1到5之间的数字。在每次猜错之后,它会告诉你还有多少次尝试。当你猜对了,你会收到一条祝贺信息。当你猜不出的时候,你会得到一个信息。然而,我无法得到消息时,你运行的猜测。为什么它不运行 <script type="text/javascript"> var tries=3; alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries."
<script type="text/javascript">
var tries=3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var attempt = prompt(tries+" tries remaining. Enter your guess.");
var randomnumber = Math.random() * 5;
randomnumber = Math.ceil(randomnumber);
while (tries>=2){
if(attempt!=randomnumber){
tries--;
prompt("Wrong! You have " + tries + " left ");
}
else if(tries<1){
alert("You have no tries left");
}
else {
alert("Congratulations! You guessed the correct number");
return;
}
}
</script>
var=3;
警惕(“猜猜我想的数字在1到5之间,你已经试了3次了。”);
var trunt=prompt(尝试+“尝试剩余。输入您的猜测”);
var randomnumber=Math.random()*5;
随机数=Math.ceil(随机数);
while(尝试次数>=2){
如果(尝试!=随机数){
尝试--;
提示(“错误!您有“+尝试+”左”);
}
else-if(trytes只有当您有2次以上或正好2次尝试时才进入循环。否则您的if语句不会执行。您可能必须将if与while分开
<script type="text/javascript">
var tries=3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var attempt = prompt(tries+" tries remaining. Enter your guess.");
var randomnumber = Math.random() * 5;
randomnumber = Math.ceil(randomnumber);
while (tries-1 > 0){
if(attempt!=randomnumber){
tries--;
prompt("Wrong! You have " + tries + " left ");
}
else {
alert("Congratulations! You guessed the correct number");
return;
}
}
alert("You have no tries left");
</script>
var=3;
警惕(“猜猜我想的数字在1到5之间,你已经试了3次了。”);
var trunt=prompt(尝试+“尝试剩余。输入您的猜测”);
var randomnumber=Math.random()*5;
随机数=Math.ceil(随机数);
而(尝试-1>0){
如果(尝试!=随机数){
尝试--;
提示(“错误!您有“+尝试+”左”);
}
否则{
警报(“祝贺你!你猜对了号码”);
回来
}
}
警报(“您没有剩余的尝试”);
只有在尝试次数超过2次或正好2次时才进入循环。否则,if语句将不会执行。您可能必须将if与while分开
<script type="text/javascript">
var tries=3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var attempt = prompt(tries+" tries remaining. Enter your guess.");
var randomnumber = Math.random() * 5;
randomnumber = Math.ceil(randomnumber);
while (tries-1 > 0){
if(attempt!=randomnumber){
tries--;
prompt("Wrong! You have " + tries + " left ");
}
else {
alert("Congratulations! You guessed the correct number");
return;
}
}
alert("You have no tries left");
</script>
var=3;
警惕(“猜猜我想的数字在1到5之间,你已经试了3次了。”);
var trunt=prompt(尝试+“尝试剩余。输入您的猜测”);
var randomnumber=Math.random()*5;
随机数=Math.ceil(随机数);
而(尝试-1>0){
如果(尝试!=随机数){
尝试--;
提示(“错误!您有“+尝试+”左”);
}
否则{
警报(“祝贺你!你猜对了号码”);
回来
}
}
警报(“您没有剩余的尝试”);
问题出在您的检查中尝试>=2
。我对您的代码进行了一些修改,它可以按要求工作
var tries = 3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var attempt = prompt(tries + " tries remaining. Enter your guess.");
var randomnumber = Math.floor(Math.random() * 5);
while (tries-1 > 0) {
if (attempt != randomnumber) {
tries--;
prompt("Wrong! You have " + tries + " left ");
} else {
alert("Congratulations! You guessed the correct number");
return;
}
}
alert("You have no tries left");
return;
- 你可以在一行上得到一个随机数
- 将逻辑分为两层-在进行猜测时,检查猜测是否正确,否则返回“no guesses left”消息
问题出在您的检查中trys>=2
。我对您的代码进行了一些修改,它可以按要求工作
var tries = 3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var attempt = prompt(tries + " tries remaining. Enter your guess.");
var randomnumber = Math.floor(Math.random() * 5);
while (tries-1 > 0) {
if (attempt != randomnumber) {
tries--;
prompt("Wrong! You have " + tries + " left ");
} else {
alert("Congratulations! You guessed the correct number");
return;
}
}
alert("You have no tries left");
return;
- 你可以在一行上得到一个随机数
- 将逻辑分为两层-在进行猜测时,检查猜测是否正确,否则返回“no guesses left”消息
您必须影响尝试的每次尝试
变量:
<script type="text/javascript">
var tries=3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var randomnumber = Math.random() * 5;
randomnumber = Math.ceil(randomnumber);
var attempt;
var success = false;
while (tries>0 && !success){
attempt = prompt(tries+" tries remaining. Enter your guess.");
tries--;
if(attempt!=randomnumber){
alert("Wrong! You have " + tries + " left ");
} else {
success = true;
}
}
if(success){
alert("Congratulations! You guessed the correct number");
} else {
alert("You have no tries left");
}
</script>
var=3;
警惕(“猜猜我想的数字在1到5之间,你已经试了3次了。”);
var randomnumber=Math.random()*5;
随机数=Math.ceil(随机数);
var尝试;
var成功=false;
while(尝试>0&!成功){
尝试=提示(尝试+“尝试剩余。输入您的猜测”);
尝试--;
如果(尝试!=随机数){
警告(“错误!您有“+尝试+”左”);
}否则{
成功=真实;
}
}
如果(成功){
警报(“祝贺你!你猜对了号码”);
}否则{
警报(“您没有剩余的尝试”);
}
您必须影响尝试的每次尝试
变量:
<script type="text/javascript">
var tries=3;
alert("Guess the number I'm thinking of between 1 and 5. You've got 3 tries.");
var randomnumber = Math.random() * 5;
randomnumber = Math.ceil(randomnumber);
var attempt;
var success = false;
while (tries>0 && !success){
attempt = prompt(tries+" tries remaining. Enter your guess.");
tries--;
if(attempt!=randomnumber){
alert("Wrong! You have " + tries + " left ");
} else {
success = true;
}
}
if(success){
alert("Congratulations! You guessed the correct number");
} else {
alert("You have no tries left");
}
</script>
var=3;
警惕(“猜猜我想的数字在1到5之间,你已经试了3次了。”);
var randomnumber=Math.random()*5;
随机数=Math.ceil(随机数);
var尝试;
var成功=false;
while(尝试>0&!成功){
尝试=提示(尝试+“尝试剩余。输入您的猜测”);
尝试--;
如果(尝试!=随机数){
警告(“错误!您有“+尝试+”左”);
}否则{
成功=真实;
}
}
如果(成功){
警报(“祝贺你!你猜对了号码”);
}否则{
警报(“您没有剩余的尝试”);
}
想想你的循环。当循环结束时,trys
的值是多少?这与你想要显示“no trys left”时所寻找的trys
的值有何不同消息。想想你的循环。当循环结束时,trys
的值是多少?当你想显示“no trys left”消息时,这与你正在寻找的trys
的值有何不同。你在这段代码中只有两次尝试。你应该删除“-1”从tries@Xatenev您有3次尝试。测试代码。用小提琴编辑。检查while如何工作tries
变量在循环内递减对不起,您的权利,我的失败-我没有测试您的代码。我没有看到,第一个提示已经在循环外。您在这段代码中只有2次尝试。您应该删除“-1”从tries开始。@Xatenev您有3次尝试..测试代码。在fiddle中编辑。检查while如何工作tries
变量在循环内递减对不起,您的权利,我的失败-我没有测试您的代码。我没有看到,第一个提示已经在循环外。