|
|
步骤
1
:
本练习的效果
步骤
2
:
复利公式
步骤
3
:
html部分
步骤
4
:
答案
");
window.frames["iframe_show2101"].document.write(decodeHtml($("textarea#stepcodeTextarea2101").val()));
window.frames["iframe_show2101"].document.close();
$(window.frames["iframe_show2101"]).load(function(){
$("#iframe_show2101").height($("#iframe_show2101").contents().find("body").height()+showittryitheight);
});
$("#iframe_show2101").height($("#iframe_show2101").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<style>
table{
border-collapse:collapse;
}
td{
border:1px silver solid;
padding: 5px;
font-size:12px;
}
input{
width:180px;
}
</style>
<script>
/*取幂函数*/
function p(base, power){
if(1==power)
return base
if(0==power)
return 0;
var result = base;
for(var i = 0; i<power-1; i++){
result = result*base;
}
return result;
}
/*取复利*/
function fuli(rate, year){
var result = 0;
for(var i=year;i>0;i--){
result+=p(rate,i);
}
return result;
}
function calc(){
var initMoney= getIntValue("initMoney");
var rate= getIntValue("rate");
var year= getIntValue("year");
var each= getIntValue("each");
var sum1 = (year-1)*each+initMoney;
var sum3=each* fuli( (1+rate/100),(year-1)) + initMoney*p( (1+rate/100) ,year);
var sum2 = sum3-sum1;
setValue("sum1",sum1);
setValue("sum2",sum2);
setValue("sum3",sum3);
}
function setValue(id,value){
document.getElementById(id).value=value;
}
function getIntValue(id){
return parseInt(document.getElementById(id).value);
}
</script>
<table>
<tr>
<td>起始资金</td>
<td><input type="text" id="initMoney" value='10000'> ￥</td>
<tr>
<td>每年收益</td>
<td><input type="text" id="rate" value='5'> %</td>
</tr>
<tr>
<td>复利年数</td>
<td><input type="text" id="year" value='10'> 年</td>
</tr>
<tr>
<td>每年追加资金</td>
<td><input type="text" id="each" value='10000'> ￥</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" value="计算" onclick="calc()"></td>
</tr>
<tr>
<td>本金和</td>
<td><input type="text" id="sum1" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>利息和</td>
<td><input type="text" id="sum2" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>本息和</td>
<td><input type="text" id="sum3" disabled="disabled" value='0'> ￥</td>
</tr>
</table>
<style>
table{
border-collapse:collapse;
}
td{
border:1px silver solid;
padding: 5px;
font-size:12px;
}
input{
width:180px;
}
</style>
<script>
/*取幂函数*/
function p(base, power){
if(1==power)
return base
if(0==power)
return 0;
var result = base;
for(var i = 0; i<power-1; i++){
result = result*base;
}
return result;
}
/*取复利*/
function fuli(rate, year){
var result = 0;
for(var i=year;i>0;i--){
result+=p(rate,i);
}
return result;
}
function calc(){
var initMoney= getIntValue("initMoney");
var rate= getIntValue("rate");
var year= getIntValue("year");
var each= getIntValue("each");
var sum1 = (year-1)*each+initMoney;
var sum3=each* fuli( (1+rate/100),(year-1)) + initMoney*p( (1+rate/100) ,year);
var sum2 = sum3-sum1;
setValue("sum1",sum1);
setValue("sum2",sum2);
setValue("sum3",sum3);
}
function setValue(id,value){
document.getElementById(id).value=value;
}
function getIntValue(id){
return parseInt(document.getElementById(id).value);
}
</script>
<table>
<tr>
<td>起始资金</td>
<td><input type="text" id="initMoney" value='10000'> ￥</td>
<tr>
<td>每年收益</td>
<td><input type="text" id="rate" value='5'> %</td>
</tr>
<tr>
<td>复利年数</td>
<td><input type="text" id="year" value='10'> 年</td>
</tr>
<tr>
<td>每年追加资金</td>
<td><input type="text" id="each" value='10000'> ￥</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" value="计算" onclick="calc()"></td>
</tr>
<tr>
<td>本金和</td>
<td><input type="text" id="sum1" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>利息和</td>
<td><input type="text" id="sum2" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>本息和</td>
<td><input type="text" id="sum3" disabled="disabled" value='0'> ￥</td>
</tr>
</table>
");
window.frames["iframe2101"].document.write(decodeHtml(code2101));
window.frames["iframe2101"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe2101"]).load(function(){
$("#iframe2101").height($("#iframe2101").contents().find("body").height()+showittryitheight);
});
$("#iframe2101").height($("#iframe2101").contents().find("body").height()+showittryitheight);
alreadyWriteCode2101 = code2101;
$("#rendering2101").hide();
$("#rendered2101").show();
}
var tRereshRetry2DemoPanel2101 = setInterval(rereshRetry2DemoPanel2101,1000);
var binded2101 = false;
$("textarea#stepcodeTextarea2101").keyup(function(){
if(!binded2101){
$(window).bind('beforeunload',function(){
binded2101 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code2101 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code2101!=newCode){
// window.frames["iframe2101"].document.write("
");
// window.frames["iframe2101"].document.write(decodeHtml($("textarea#stepcodeTextarea2101").val()));
// window.frames["iframe2101"].document.close();
// $(window.frames["iframe2101"]).load(function(){
// $("#iframe2101").height($("#iframe2101").contents().find("body").height()+showittryitheight);
// });
// code2101 = newCode;
// }
});
$(".tryButton2101").click(function(){
$("#tryDiv2101").show();
$("#stepcodeTextarea2101").focus();
$("#stepcodeTextarea2101").height(200);
$("#iframe2101").height(0);
window.frames["iframe2101"].document.write("
");
window.frames["iframe2101"].document.write(decodeHtml($("textarea#stepcodeTextarea2101").val()));
window.frames["iframe2101"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe2101"]).load(function(){
$("#iframe2101").height($("#iframe2101").contents().find("body").height()+showittryitheight);
});
$("#iframe2101").height($("#iframe2101").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor2101.focus();
editor2101.setSize(null, "250");
$("#rendering2101").hide();
$("#rendered2101").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor2101 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea2101"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor2101.on("change",function(doc){
if(!binded2101){
$(window).bind('beforeunload',function(){
binded2101 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code2101 = newCode;
$("textarea#stepcodeTextarea2101").val(newCode);
if(alreadyWriteCode2101!=code2101){
lastModifedTime2101 = new Date().getTime();
$("#rendering2101").show();
$("#rendered2101").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor2101 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor2101.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv2101").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑，再次点击恢复
|
|
渲染中
渲染完成
|
复利公式：
F = p* ( (1+r)^n );
F 最终收入
p 本金
r 年利率
n 存了多少年
假设情景一：
p = 10000
r = 0.05
n = 1
解读：
本金是10000
年利率是5%
存了一年 1次
复利收入 10000*( (1+0.05)^1 ) = 10500
假设情景二：
p = 10000
r = 0.05
n = 2
解读：
本金是10000
年利率是5%
存了两年
复利收入 10000*( (1+0.05)^2 ) = 11025
");
window.frames["iframe_show2102"].document.write(decodeHtml($("textarea#stepcodeTextarea2102").val()));
window.frames["iframe_show2102"].document.close();
$(window.frames["iframe_show2102"]).load(function(){
$("#iframe_show2102").height($("#iframe_show2102").contents().find("body").height()+showittryitheight);
});
$("#iframe_show2102").height($("#iframe_show2102").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<style>
table{
border-collapse:collapse;
}
td{
border:1px silver solid;
padding: 5px;
font-size:12px;
}
input{
width:80px;
}
</style>
<table>
<tr>
<td>起始资金</td>
<td><input type="text" id="initMoney" value='0'> ￥</td>
<tr>
<td>每年收益</td>
<td><input type="text" id="rate" value='0'> %</td>
</tr>
<tr>
<td>复利年数</td>
<td><input type="text" id="year" value='1'> 年</td>
</tr>
<tr>
<td>每年追加资金</td>
<td><input type="text" id="each" value='0'> ￥</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" value="计算" ></td>
</tr>
<tr>
<td>本金和</td>
<td><input type="text" id="sum1" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>利息和</td>
<td><input type="text" id="sum2" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>本息和</td>
<td><input type="text" id="sum3" disabled="disabled" value='0'> ￥</td>
</tr>
</table>
<style>
table{
border-collapse:collapse;
}
td{
border:1px silver solid;
padding: 5px;
font-size:12px;
}
input{
width:80px;
}
</style>
<table>
<tr>
<td>起始资金</td>
<td><input type="text" id="initMoney" value='0'> ￥</td>
<tr>
<td>每年收益</td>
<td><input type="text" id="rate" value='0'> %</td>
</tr>
<tr>
<td>复利年数</td>
<td><input type="text" id="year" value='1'> 年</td>
</tr>
<tr>
<td>每年追加资金</td>
<td><input type="text" id="each" value='0'> ￥</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" value="计算" ></td>
</tr>
<tr>
<td>本金和</td>
<td><input type="text" id="sum1" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>利息和</td>
<td><input type="text" id="sum2" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>本息和</td>
<td><input type="text" id="sum3" disabled="disabled" value='0'> ￥</td>
</tr>
</table>
");
window.frames["iframe2102"].document.write(decodeHtml(code2102));
window.frames["iframe2102"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe2102"]).load(function(){
$("#iframe2102").height($("#iframe2102").contents().find("body").height()+showittryitheight);
});
$("#iframe2102").height($("#iframe2102").contents().find("body").height()+showittryitheight);
alreadyWriteCode2102 = code2102;
$("#rendering2102").hide();
$("#rendered2102").show();
}
var tRereshRetry2DemoPanel2102 = setInterval(rereshRetry2DemoPanel2102,1000);
var binded2102 = false;
$("textarea#stepcodeTextarea2102").keyup(function(){
if(!binded2102){
$(window).bind('beforeunload',function(){
binded2102 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code2102 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code2102!=newCode){
// window.frames["iframe2102"].document.write("
");
// window.frames["iframe2102"].document.write(decodeHtml($("textarea#stepcodeTextarea2102").val()));
// window.frames["iframe2102"].document.close();
// $(window.frames["iframe2102"]).load(function(){
// $("#iframe2102").height($("#iframe2102").contents().find("body").height()+showittryitheight);
// });
// code2102 = newCode;
// }
});
$(".tryButton2102").click(function(){
$("#tryDiv2102").show();
$("#stepcodeTextarea2102").focus();
$("#stepcodeTextarea2102").height(200);
$("#iframe2102").height(0);
window.frames["iframe2102"].document.write("
");
window.frames["iframe2102"].document.write(decodeHtml($("textarea#stepcodeTextarea2102").val()));
window.frames["iframe2102"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe2102"]).load(function(){
$("#iframe2102").height($("#iframe2102").contents().find("body").height()+showittryitheight);
});
$("#iframe2102").height($("#iframe2102").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor2102.focus();
editor2102.setSize(null, "250");
$("#rendering2102").hide();
$("#rendered2102").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor2102 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea2102"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor2102.on("change",function(doc){
if(!binded2102){
$(window).bind('beforeunload',function(){
binded2102 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code2102 = newCode;
$("textarea#stepcodeTextarea2102").val(newCode);
if(alreadyWriteCode2102!=code2102){
lastModifedTime2102 = new Date().getTime();
$("#rendering2102").show();
$("#rendered2102").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor2102 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor2102.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv2102").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑，再次点击恢复
|
|
渲染中
渲染完成
|
");
window.frames["iframe_show2103"].document.write(decodeHtml($("textarea#stepcodeTextarea2103").val()));
window.frames["iframe_show2103"].document.close();
$(window.frames["iframe_show2103"]).load(function(){
$("#iframe_show2103").height($("#iframe_show2103").contents().find("body").height()+showittryitheight);
});
$("#iframe_show2103").height($("#iframe_show2103").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<style>
table{
border-collapse:collapse;
}
td{
border:1px silver solid;
padding: 5px;
font-size:12px;
}
input{
width:180px;
}
</style>
<script>
/*取幂函数*/
function p(base, power){
if(1==power)
return base
if(0==power)
return 1;
var result = base;
for(var i = 0; i<power-1; i++){
result = result*base;
}
return result;
}
/*取复利*/
function fuli(rate, year){
var result = 0;
for(var i=year;i>0;i--){
result+=p(rate,i);
}
return result;
}
function calc(){
var initMoney= getIntValue("initMoney");
var rate= getIntValue("rate");
var year= getIntValue("year");
var each= getIntValue("each");
var sum1 = (year-1)*each+initMoney;
var sum3=each* fuli( (1+rate/100),(year-1)) + initMoney*p( (1+rate/100) ,year);
var sum2 = sum3-sum1;
setValue("sum1",sum1);
setValue("sum2",sum2);
setValue("sum3",sum3);
}
function setValue(id,value){
document.getElementById(id).value=value;
}
function getIntValue(id){
return parseInt(document.getElementById(id).value);
}
</script>
<table>
<tr>
<td>起始资金</td>
<td><input type="text" id="initMoney" value='10000'> ￥</td>
<tr>
<td>每年收益</td>
<td><input type="text" id="rate" value='5'> %</td>
</tr>
<tr>
<td>复利年数</td>
<td><input type="text" id="year" value='10'> 年</td>
</tr>
<tr>
<td>每年追加资金</td>
<td><input type="text" id="each" value='10000'> ￥</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" value="计算" onclick="calc()"></td>
</tr>
<tr>
<td>本金和</td>
<td><input type="text" id="sum1" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>利息和</td>
<td><input type="text" id="sum2" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>本息和</td>
<td><input type="text" id="sum3" disabled="disabled" value='0'> ￥</td>
</tr>
</table>
<style>
table{
border-collapse:collapse;
}
td{
border:1px silver solid;
padding: 5px;
font-size:12px;
}
input{
width:180px;
}
</style>
<script>
/*取幂函数*/
function p(base, power){
if(1==power)
return base
if(0==power)
return 1;
var result = base;
for(var i = 0; i<power-1; i++){
result = result*base;
}
return result;
}
/*取复利*/
function fuli(rate, year){
var result = 0;
for(var i=year;i>0;i--){
result+=p(rate,i);
}
return result;
}
function calc(){
var initMoney= getIntValue("initMoney");
var rate= getIntValue("rate");
var year= getIntValue("year");
var each= getIntValue("each");
var sum1 = (year-1)*each+initMoney;
var sum3=each* fuli( (1+rate/100),(year-1)) + initMoney*p( (1+rate/100) ,year);
var sum2 = sum3-sum1;
setValue("sum1",sum1);
setValue("sum2",sum2);
setValue("sum3",sum3);
}
function setValue(id,value){
document.getElementById(id).value=value;
}
function getIntValue(id){
return parseInt(document.getElementById(id).value);
}
</script>
<table>
<tr>
<td>起始资金</td>
<td><input type="text" id="initMoney" value='10000'> ￥</td>
<tr>
<td>每年收益</td>
<td><input type="text" id="rate" value='5'> %</td>
</tr>
<tr>
<td>复利年数</td>
<td><input type="text" id="year" value='10'> 年</td>
</tr>
<tr>
<td>每年追加资金</td>
<td><input type="text" id="each" value='10000'> ￥</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" value="计算" onclick="calc()"></td>
</tr>
<tr>
<td>本金和</td>
<td><input type="text" id="sum1" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>利息和</td>
<td><input type="text" id="sum2" disabled="disabled" value='0'> ￥</td>
</tr>
<tr>
<td>本息和</td>
<td><input type="text" id="sum3" disabled="disabled" value='0'> ￥</td>
</tr>
</table>
");
window.frames["iframe2103"].document.write(decodeHtml(code2103));
window.frames["iframe2103"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe2103"]).load(function(){
$("#iframe2103").height($("#iframe2103").contents().find("body").height()+showittryitheight);
});
$("#iframe2103").height($("#iframe2103").contents().find("body").height()+showittryitheight);
alreadyWriteCode2103 = code2103;
$("#rendering2103").hide();
$("#rendered2103").show();
}
var tRereshRetry2DemoPanel2103 = setInterval(rereshRetry2DemoPanel2103,1000);
var binded2103 = false;
$("textarea#stepcodeTextarea2103").keyup(function(){
if(!binded2103){
$(window).bind('beforeunload',function(){
binded2103 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code2103 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code2103!=newCode){
// window.frames["iframe2103"].document.write("
");
// window.frames["iframe2103"].document.write(decodeHtml($("textarea#stepcodeTextarea2103").val()));
// window.frames["iframe2103"].document.close();
// $(window.frames["iframe2103"]).load(function(){
// $("#iframe2103").height($("#iframe2103").contents().find("body").height()+showittryitheight);
// });
// code2103 = newCode;
// }
});
$(".tryButton2103").click(function(){
$("#tryDiv2103").show();
$("#stepcodeTextarea2103").focus();
$("#stepcodeTextarea2103").height(200);
$("#iframe2103").height(0);
window.frames["iframe2103"].document.write("
");
window.frames["iframe2103"].document.write(decodeHtml($("textarea#stepcodeTextarea2103").val()));
window.frames["iframe2103"].document.close();
//load和下面的非load必需并存，因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe2103"]).load(function(){
$("#iframe2103").height($("#iframe2103").contents().find("body").height()+showittryitheight);
});
$("#iframe2103").height($("#iframe2103").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor2103.focus();
editor2103.setSize(null, "250");
$("#rendering2103").hide();
$("#rendered2103").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor2103 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea2103"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor2103.on("change",function(doc){
if(!binded2103){
$(window).bind('beforeunload',function(){
binded2103 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code2103 = newCode;
$("textarea#stepcodeTextarea2103").val(newCode);
if(alreadyWriteCode2103!=code2103){
lastModifedTime2103 = new Date().getTime();
$("#rendering2103").show();
$("#rendered2103").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor2103 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor2103.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv2103").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑，再次点击恢复
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渲染中
渲染完成
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代码高亮插件双击即可选中，不过部分同学反应，通过代码高亮插件复制的代码无法在IDEA里正常显示，这里提供TEXTAREA的方式，方便复制，谢谢
1. 自行完成练习
根据练习目标尽量自己实现代码效果，期间会碰到疑问，难题，和自己不懂的地方，这些都是必要的过程
2. 带着疑问查看答案
完成过程中，碰到无法解决的问题，带着疑问，查看答案，分析答案的解决思路
3. 查看答案讲解视频
依然有不明白的地方，点开视频讲解，带着疑问，听视频讲解有问题的部分
4. 再做一遍
理解后，再从头做一遍，把有疑问的地方都捋清楚
5. 总结
最后再总结一遍，总结思路，总结解决办法，以后遇到类似的问题，怎么处理
HOW2J公众号，关注后实时获知布最新的教程和优惠活动，谢谢。
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