小程序里页面后退怎么刷新页面

一般想实现后退刷新效果,

比如判断是否登录啊, 这个时候可以在 onShow 函数里面写判断是否登录,如果没有登录跳转到登录页。
再比如判断页面是否有加载某个数据, 就在onShow里面判断:如果等于空的话, 就再加载一次。
示例代码

App({
onLaunch:function(options){
//生命周期函数--监听小程序初始化当小程序初始化完成时,会触发onLaunch(全局只触发一次)
},
onShow:function(options){
//生命周期函数--监听小程序显示(后退到这个页面的时候这个就会被回调)当小程序启动,或从后台进入前台显示,会触发onShow
},
onHide:function(){
//生命周期函数--监听小程序隐藏当小程序从前台进入后台,会触发onHide
},
onError:function(msg){
//错误监听函数当小程序发生脚本错误,或者api调用失败时,会触发onError并带上错误信息
},
globalData:'Iamglobaldata'})

更详细的资料应该参照官网API看, 因为随着升级有些方法可能不再适用!
小程序API 网页链接

② 一个ASP小程序

//VBScript的语法我不太懂,你看着改一下吧, JS的语法比较清晰易懂.

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Test</title>
<script language=javaScript>
<!--
function showTime(){
var digital = new Date();
var hours = digital.getHours();
var minutes = digital.getMinutes();
var seconds = digital.getSeconds();
var day = digital.getDate();
var month = digital.getMonth() + 1;
var year = digital.getYear();
var amOrPm = "AM";
if (hours > 11) amOrPm = "PM";
//if (hours > 12) hours = hours - 12;
if (hours == 0) hours = 12;
if (minutes < 10) minutes = "0" + minutes;
if (seconds < 10) seconds = "0" + seconds;
dispTime = hours + ":" + minutes + ":" + seconds + " ";// + amOrPm;

var enabled = 0; today = new Date();
var day; var date;
if(today.getDay()==0) day = " 星期日"
if(today.getDay()==1) day = " 星期一"
if(today.getDay()==2) day = " 星期二"
if(today.getDay()==3) day = " 星期三"
if(today.getDay()==4) day = " 星期四"
if(today.getDay()==5) day = " 星期五"
if(today.getDay()==6) day = " 星期六"
document.fgColor = "000000";
var str = ['上午好','下午好','晚上好','夜里好'];
var i = 0;
if(hours>=0 && hours<=6)
i = 3;
else if(hours>6 && hours<=12)
i = 0;
else if(hours>=12 && hours<=18)
i = 1;
else
i = 2;
date = "今天是:" + (today.getYear()) + "年" + (today.getMonth() + 1 ) + "月" + today.getDate() + "日" + day +" ";
document.getElementById("timeSpan").innerHTML = date + dispTime + str[i];
setTimeout("showTime()", 1000);
}
// -->
</script>
</head>

<body onload="showTime()">
<span id="timeSpan"></span>
</body>
</html>

③ 帮忙写C++三个小程序

#include <iostream>
using namespace std;

bool ch_24to12(int n)
{
int hour = n/100;
int min = n%100;
if(hour<0 || hour>23) return false;
if(min>59) return false;
if(hour<10) cout<<"0";
cout<<hour;
if(min<10) cout<<"0";
cout<<min;
bool big = false;
if(hour>12)
{
hour -=12;
big = true;
}
else if(hour==12) big = true;
cout<<" is "<<hour<<".";
if(min<10) cout<<"0";
cout<<min;
if(big) cout<<" pm."<<endl;
else cout<<" am."<<endl;
return true;
}

int main(int argc, char *argv[])
{
int n;
cout<<"input a number:";
cin>>n;
if(!ch_24to12(n)) cout<<"Wrong time!"<<endl;
return 0;
}

④ 小程序,找个错.谢谢

改成这样,编译器就不警告了。

#include<stdio.h>
int main()
{
char a[5][10];
char (*p)[10];
for(p=a;p<a+5;p++)
gets(*p);
for(p=a;p<a+5;p++)
puts(*p);
}

char **p,意为p是个指针,它将指向一另一个char指针,该指针指向一个char变量。而不是指向一个char数组。

我也不知道,《The C Puzzle Book》第113页说:一个数组的地址和这个数组中的第一个元素的地址是有区别的:这两种地址的类型是不同的,这种区别主要体现在对地址进行算术运算时的递增量/递减量方面.

比如int a[3][3],a的类型是指向三元数组的指针,a的基类型是三元int数组,而a+1将指向下一个三元int数组。a[0]的类型是指向int整数的指针,a[0]的基类型是int,而a[0]+1将指向内存中的下一个int整数。

这也许能解释为什么编译器会对p=a给出警告,而非错误。不过将p声明成char (*p)[10]更好。
/*****************************************/
上面的解释不完全正确,这里有个和你问的是一样的问题,它由Sun Miscosystems公司的Peter van der Linden先生在其大作《Expert C Programming》中作为第二章例子给出了详细的解释。

Reading the ANSI C Standard for Fun, Pleasure, and Profit
Sometimes it takes considerable concentration to read the ANSI C Standard and obtain an answer
from it. A sales engineer sent the following piece of code into the compiler group at Sun as a test case.
1 foo(const char **p) { }
2
3 main(int argc, char **argv)
4{
5 foo(argv);
6}
If you try compiling it, you'll notice that the compiler issues a warning message, saying:
line 5: warning: argument is incompatible with prototype
The submitter of the code wanted to know why the warning message was generated, and what part of
the ANSI C Standard mandated this. After all, he reasoned,
argument char *s matches parameter const char *p
This is seen throughout all library string functions.
So doesn't argument char **argv match parameter const char **p ?
The answer is no, it does not. It took a little while to answer this question, and it's ecational in more
than one sense, to see the process of obtaining the answer. The analysis was carried out by one of
Sun's "language lawyers," [6] and it runs like this:
[6] The New Hacker's Dictionary defines a language lawyer as "a person who will show you the five
sentences scattered through a 200-plus-page manual that together imply the answer to your question 'if only
you had thought to look there.'" Yep! That's exactly what happened in this case.
The Constraints portion of Section 6.3.2.2 of the ANSI C Standard includes the phrase:
Each argument shall have a type such that its value may be assigned to an object with the unqualified
version of the type of its corresponding parameter.
This says that argument passing is supposed to behave like assignment.
Thus, a diagnostic message must be proced unless an object of type const char ** may be
assigned a value of type char **.To find out whether this assignment is legal, flip to the section
on simple assignment, Section 6.3.16.1, which includes the following constraint:
One of the following shall hold:…
• Both operands are pointers to qualified or unqualified versions of compatible types, and the
type pointed to by the left has all the qualifiers of the type pointed to by the right.
It is this condition that makes a call with a char * argument corresponding to a const char *
parameter legal (as seen throughout the string routines in the C library). This is legal because in the
code
char * cp;
const char *ccp;
ccp = cp;
• The left operand is a pointer to "char qualified by const".
• The right operand is a pointer to "char" unqualified.
• The type char is a compatible type with char, and the type pointed to by the left operand
has all the qualifiers of the type pointed to by the right operand (none), plus one of its own
(const).
Note that the assignment cannot be made the other way around. Try it if you don't believe me.
cp = ccp; /* results in a compilation warning */
Does Section 6.3.16.1 also make a call with a char ** argument corresponding to a const
char ** parameter legal? It does not.
The Examples portion of Section 6.1.2.5 states:
The type designated "const float *" is not a qualified type—its type is "pointer to const-qualified float"
and is a pointer to a qualified type.
Analogously, const char ** denotes a pointer to an unqualified type. Its type is a pointer to a
pointer to a qualified type.
Since the types char ** and const char ** are both pointers to unqualified types that are
not the same type, they are not compatible types. Therefore, a call with an argument of type char
** corresponding to a parameter of type const char ** is not allowed. Therefore, the
constraint given in Section 6.3.2.2 is violated, and a diagnostic message must be proced.
This is a subtle point to grasp. Another way of looking at it is to note that:
• the left operand has type FOO2—a pointer to FOO, where FOO is an unqualified pointer to a
character qualified by the const qualifier, and
• the right operand has type BAZ2—a pointer to BAZ, where BAZ is an unqualified pointer to
a character with no qualifiers.
FOO and BAZ are compatible types, but FOO2 and BAZ2 differ other than in qualifica-tion of the
thing immediately pointed to and are therefore not compatible types; therefore the left and right
operands are unqualified pointers to types that are not compatible. Compatibility of pointer types is
not transitive. Therefore, the assignment or function call is not permitted. However, note that the
restriction serves mainly to annoy and confuse users. The assignment is currently allowed in C++
translators based on cfront (though that might change).
Handy Heuristic
Const Isn't
The keyword const doesn't turn a variable into a constant! A symbol with the const
qualifier merely means that the symbol cannot be used for assignment. This makes the value
re ad -onl y through that symbol; it does not prevent the value from being modified through
some other means internal (or even external) to the program. It is pretty much useful only
for qualifying a pointer parameter, to indicate that this function will not change the data that
argument points to, but other functions may. This is perhaps the most common use of
const in C and C++.
A const can be used for data, like so:
const int limit = 10;
and it acts somewhat as in other languages. When you add pointers into the equation, things
get a little rough:
const int * limitp = &limit;
int i=27;
limitp = &i;
This says that limitp is a pointer to a constant integer. The pointer cannot be used to
change the integer; however, the pointer itself can be given a different value at any time. It
will then point to a different location and dereferencing it will yield a different value!
The combination of const and * is usually only used to simulate call-by-value for array
parameters. It says, "I am giving you a pointer to this thing, but you may not change it."
This idiom is similar to the most frequent use of void *. Although that could
theoretically be used in any number of circumstances, it's usually restricted to converting
pointers from one type to another.
Analogously, you can take the address of a constant variable, and, well, perhaps I had better
not put ideas into people's heads. As Ken Thompson pointed out, "The const keyword
only confuses library interfaces with the hope of catching some rare errors." In retrospect,
the const keyword would have been better named readonly.
True, this whole area in the standard appears to have been rendered into English from Ur via Danish
by translators who had only a passing familiarity with any of these tongues, but the standards
committee was having such a good time that it seemed a pity to ruin their fun by asking for some
simpler, clearer rules.
We felt that a lot of people would have questions in the future, and not all of them would want to
follow the process of reasoning shown above. So we changed the Sun ANSI C compiler to print out
more information about what it found incompatible. The full message now says:
Line 6: warning: argument #1 is incompatible with prototype:
prototype: pointer to pointer to const char : "barf.c", line
1
argument : pointer to pointer to char
Even if a programmer doesn't understand why, he or she will now know what is incompatible

⑤ 如何通过编码实现控制系统时间的AM PM文字内容

控制面板-区域和语言选项-区域选项-自定义-时间-时间格式
在下拉菜单里选择tt h:mm:ss或tt hh:mm:ss即可!

⑥ 求高手给一个C语言简单实用小程序

简易计算器程序。
#include <dos.h> /*DOS接口函数*/
#include <math.h> /*数学函数的定义*/
#include <conio.h> /*屏幕操作函数*/
#include <stdio.h> /*I/O函数*/
#include <stdlib.h> /*库函数*/
#include <stdarg.h> /*变量长度参数表*/
#include <graphics.h> /*图形函数*/
#include <string.h> /*字符串函数*/
#include <ctype.h> /*字符操作函数*/
#define UP 0x48 /*光标上移键*/
#define DOWN 0x50 /*光标下移键*/
#define LEFT 0x4b /*光标左移键*/
#define RIGHT 0x4d /*光标右移键*/
#define ENTER 0x0d /*回车键*/
void *rar; /*全局变量,保存光标图象*/
struct palettetype palette; /*使用调色板信息*/
int GraphDriver; /* 图形设备驱动*/
int GraphMode; /* 图形模式值*/
int ErrorCode; /* 错误代码*/
int MaxColors; /* 可用颜色的最大数值*/
int MaxX, MaxY; /* 屏幕的最大分辨率*/
double AspectRatio; /* 屏幕的像素比*/
void drawboder(void); /*画边框函数*/
void initialize(void); /*初始化函数*/
void computer(void); /*计算器计算函数*/
void changetextstyle(int font, int direction, int charsize); /*改变文本样式函数*/
void mwindow(char *header); /*窗口函数*/
int specialkey(void) ; /*获取特殊键函数*/
int arrow(); /*设置箭头光标函数*/
/*主函数*/
int main()
{
initialize();/* 设置系统进入图形模式 */
computer(); /*运行计算器 */
closegraph();/*系统关闭图形模式返回文本模式*/
return(0); /*结束程序*/
}
/* 设置系统进入图形模式 */
void initialize(void)
{
int xasp, yasp; /* 用于读x和y方向纵横比*/
GraphDriver = DETECT; /* 自动检测显示器*/
initgraph( &GraphDriver, &GraphMode, "" );
/*初始化图形系统*/
ErrorCode = graphresult(); /*读初始化结果*/
if( ErrorCode != grOk ) /*如果初始化时出现错误*/
{
printf("Graphics System Error: %s\n",
grapherrormsg( ErrorCode ) ); /*显示错误代码*/
exit( 1 ); /*退出*/
}
getpalette( &palette ); /* 读面板信息*/
MaxColors = getmaxcolor() + 1; /* 读取颜色的最大值*/
MaxX = getmaxx(); /* 读屏幕尺寸 */
MaxY = getmaxy(); /* 读屏幕尺寸 */
getaspectratio( &xasp, &yasp ); /* 拷贝纵横比到变量中*/
AspectRatio = (double)xasp/(double)yasp;/* 计算纵横比值*/
}
/*计算器函数*/
void computer(void)
{
struct viewporttype vp; /*定义视口类型变量*/
int color, height, width;
int x, y,x0,y0, i, j,v,m,n,act,flag=1;
float num1=0,num2=0,result; /*操作数和计算结果变量*/
char cnum[5],str2[20]={""},c,temp[20]={""};
char str1[]="1230.456+-789*/Qc=^%";/* 定义字符串在按钮图形上显示的符号 */
mwindow( "Calculator" ); /* 显示主窗口 */
color = 7; /*设置灰颜色值*/
getviewsettings( &vp ); /* 读取当前窗口的大小*/
width=(vp.right+1)/10; /* 设置按钮宽度 */
height=(vp.bottom-10)/10 ; /*设置按钮高度 */
x = width /2; /*设置x的坐标值*/
y = height/2; /*设置y的坐标值*/
setfillstyle(SOLID_FILL, color+3);
bar( x+width*2, y, x+7*width, y+height );
/*画一个二维矩形条显示运算数和结果*/
setcolor( color+3 ); /*设置淡绿颜色边框线*/
rectangle( x+width*2, y, x+7*width, y+height );
/*画一个矩形边框线*/
setcolor(RED); /*设置颜色为红色*/
outtextxy(x+3*width,y+height/2,"0."); /*输出字符串"0."*/
x =2*width-width/2; /*设置x的坐标值*/
y =2*height+height/2; /*设置y的坐标值*/
for( j=0 ; j<4 ; ++j ) /*画按钮*/
{
for( i=0 ; i<5 ; ++i )
{
setfillstyle(SOLID_FILL, color);
setcolor(RED);
bar( x, y, x+width, y+height ); /*画一个矩形条*/
rectangle( x, y, x+width, y+height );
sprintf(str2,"%c",str1[j*5+i]);
/*将字符保存到str2中*/
outtextxy( x+(width/2), y+height/2, str2);
x =x+width+ (width / 2) ; /*移动列坐标*/
}
y +=(height/2)*3; /* 移动行坐标*/
x =2*width-width/2; /*复位列坐标*/
}
x0=2*width;
y0=3*height;
x=x0;
y=y0;
gotoxy(x,y); /*移动光标到x,y位置*/
arrow(); /*显示光标*/
putimage(x,y,rar,XOR_PUT);
m=0;
n=0;
strcpy(str2,""); /*设置str2为空串*/
while((v=specialkey())!=45) /*当压下Alt+x键结束程序,否则执行下面的循环*/
{
while((v=specialkey())!=ENTER) /*当压下键不是回车时*/
{
putimage(x,y,rar,XOR_PUT); /*显示光标图象*/
if(v==RIGHT) /*右移箭头时新位置计算*/
if(x>=x0+6*width)
/*如果右移,移到尾,则移动到最左边字符位置*/
{
x=x0;
m=0;
}
else
{
x=x+width+width/2;
m++;
} /*否则,右移到下一个字符位置*/
if(v==LEFT) /*左移箭头时新位置计算*/
if(x<=x0)
{
x=x0+6*width;
m=4;
} /*如果移到头,再左移,则移动到最右边字符位置*/
else
{
x=x-width-width/2;
m--;
} /*否则,左移到前一个字符位置*/
if(v==UP) /*上移箭头时新位置计算*/
if(y<=y0)
{
y=y0+4*height+height/2;
n=3;
} /*如果移到头,再上移,则移动到最下边字符位置*/
else
{
y=y-height-height/2;
n--;
} /*否则,移到上边一个字符位置*/
if(v==DOWN) /*下移箭头时新位置计算*/
if(y>=7*height)
{
y=y0;
n=0;
} /*如果移到尾,再下移,则移动到最上边字符位置*/
else
{
y=y+height+height/2;
n++;
} /*否则,移到下边一个字符位置*/
putimage(x,y,rar,XOR_PUT); /*在新的位置显示光标箭头*/
}
c=str1[n*5+m]; /*将字符保存到变量c中*/
if(isdigit(c)||c=='.') /*判断是否是数字或小数点*/
{
if(flag==-1) /*如果标志为-1,表明为负数*/
{
strcpy(str2,"-"); /*将负号连接到字符串中*/
flag=1;
} /*将标志值恢复为1*/
sprintf(temp,"%c",c); /*将字符保存到字符串变量temp中*/
strcat(str2,temp); /*将temp中的字符串连接到str2中*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,str2); /*显示字符串*/
}
if(c=='+')
{
num1=atof(str2); /*将第一个操作数转换为浮点数*/
strcpy(str2,""); /*将str2清空*/
act=1; /*做计算加法标志值*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,"0."); /*显示字符串*/
}
if(c=='-')
{
if(strcmp(str2,"")==0) /*如果str2为空,说明是负号,而不是减号*/
flag=-1; /*设置负数标志*/
else
{
num1=atof(str2); /*将第二个操作数转换为浮点数*/
strcpy(str2,""); /*将str2清空*/
act=2; /*做计算减法标志值*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*画矩形*/
outtextxy(5*width,height,"0."); /*显示字符串*/
}
}
if(c=='*')
{
num1=atof(str2); /*将第二个操作数转换为浮点数*/
strcpy(str2,""); /*将str2清空*/
act=3; /*做计算乘法标志值*/
setfillstyle(SOLID_FILL,color+3); bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,"0."); /*显示字符串*/
}
if(c=='/')
{
num1=atof(str2); /*将第二个操作数转换为浮点数*/
strcpy(str2,""); /*将str2清空*/
act=4; /*做计算除法标志值*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,"0."); /*显示字符串*/
}
if(c=='^')
{
num1=atof(str2); /*将第二个操作数转换为浮点数*/
strcpy(str2,""); /*将str2清空*/
act=5; /*做计算乘方标志值*/
setfillstyle(SOLID_FILL,color+3); /*设置用淡绿色实体填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*画矩形*/
outtextxy(5*width,height,"0."); /*显示字符串*/
}
if(c=='%')
{
num1=atof(str2); /*将第二个操作数转换为浮点数*/
strcpy(str2,""); /*将str2清空*/
act=6; /*做计算模运算乘方标志值*/
setfillstyle(SOLID_FILL,color+3); /*设置用淡绿色实体填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*画矩形*/
outtextxy(5*width,height,"0."); /*显示字符串*/
}
if(c=='=')
{
num2=atof(str2); /*将第二个操作数转换为浮点数*/
switch(act) /*根据运算符号计算*/
{
case 1:result=num1+num2;break; /*做加法*/
case 2:result=num1-num2;break; /*做减法*/
case 3:result=num1*num2;break; /*做乘法*/
case 4:result=num1/num2;break; /*做除法*/
case 5:result=pow(num1,num2);break; /*做x的y次方*/
case 6:result=fmod(num1,num2);break; /*做模运算*/
}
setfillstyle(SOLID_FILL,color+3); /*设置用淡绿色实体填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*覆盖结果区*/
sprintf(temp,"%f",result); /*将结果保存到temp中*/
outtextxy(5*width,height,temp); /*显示结果*/
}
if(c=='c')
{
num1=0; /*将两个操作数复位0,符号标志为1*/
num2=0;
flag=1;
strcpy(str2,""); /*将str2清空*/
setfillstyle(SOLID_FILL,color+3); /*设置用淡绿色实体填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*覆盖结果区*/
outtextxy(5*width,height,"0."); /*显示字符串*/
}
if(c=='Q')exit(0); /*如果选择了q回车,结束计算程序*/
}
putimage(x,y,rar,XOR_PUT); /*在退出之前消去光标箭头*/
return; /*返回*/
}
/*窗口函数*/
void mwindow( char *header )
{
int height;
cleardevice(); /* 清除图形屏幕 */
setcolor( MaxColors - 1 ); /* 设置当前颜色为白色*/
setviewport( 20, 20, MaxX/2, MaxY/2, 1 ); /* 设置视口大小 */
height = textheight( "H" ); /* 读取基本文本大小 */
settextstyle( DEFAULT_FONT, HORIZ_DIR, 1 );/*设置文本样式*/
settextjustify( CENTER_TEXT, TOP_TEXT );/*设置字符排列方式*/
outtextxy( MaxX/4, 2, header ); /*输出标题*/
setviewport( 20,20+height+4, MaxX/2+4, MaxY/2+20, 1 ); /*设置视口大小*/
drawboder(); /*画边框*/
}
void drawboder(void) /*画边框*/
{
struct viewporttype vp; /*定义视口类型变量*/
setcolor( MaxColors - 1 ); /*设置当前颜色为白色 */
setlinestyle( SOLID_LINE, 0, NORM_WIDTH );/*设置画线方式*/
getviewsettings( &vp );/*将当前视口信息装入vp所指的结构中*/
rectangle( 0, 0, vp.right-vp.left, vp.bottom-vp.top ); /*画矩形边框*/
}
/*设计鼠标图形函数*/
int arrow()
{
int size;
int raw[]={4,4,4,8,6,8,14,16,16,16,8,6,8,4,4,4}; /*定义多边形坐标*/
setfillstyle(SOLID_FILL,2); /*设置填充模式*/
fillpoly(8,raw); /*画出一光标箭头*/
size=imagesize(4,4,16,16); /*测试图象大小*/
rar=malloc(size); /*分配内存区域*/
getimage(4,4,16,16,rar); /*存放光标箭头图象*/
putimage(4,4,rar,XOR_PUT); /*消去光标箭头图象*/
return 0;
}
/*按键函数*/
int specialkey(void)
{
int key;
while(bioskey(1)==0); /*等待键盘输入*/
key=bioskey(0); /*键盘输入*/
key=key&0xff? key&0xff:key>>8; /*只取特殊键的扫描值,其余为0*/
return(key); /*返回键值*/
}

⑦ C语言小程序!!!

#include<stdio.h>
void main()
{
char str1[30]={"i am a boy"};
char str2[]={"you are a teacher"};
int i,j,k;
i=0,j=0;
while(str1[i]!='\0') {i++;}
while(str2[j]!='\0')
{
str1[i]=str2[j];
i++,j++;
}
for(i=0;i<30;i++)
printf("%c",str1[i]);
}

⑧ 用java 写一个小程序

String str= new String("I am tomato");
byte[] b = new byte[str.length()];
for(int i=0; i<str.length();i++){
if(str.charAt(i)!=32){
b[i]=(byte)(str.charAt(i)+1);
}else
b[i]=(byte)str.charAt(i);
}
String str2=new String(b);
System.out.println(str2);

⑨ 求一WEB 小程序,JAVASCRIPT写 在网页上第一行显示今天是星期几 第二行显示当前时间

随手写的,不是很完美,但,复合要求,把这段贴到记事本中,将后缀名改成.html结尾即可运行。
比如aaa.txt ----> aaa.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>日期</title>
<script language="javascript">
function show()
{
var x= new Date();
var y=x.getYear();// 年
var m=x.getMonth();//月
var d=x.getDay();//星期
var ds=x.getDate();//日
var h=x.getHours();//小时
var m1=x.getMinutes();//分
var s=x.getSeconds();//秒
var day;
if (x.getDay()==0) day="星期日";
if (x.getDay()==1) day="星期一";
if (x.getDay()==2) day="星期二";
if (x.getDay()==3) day="星期三";
if (x.getDay()==4) day="星期四";
if (x.getDay()==5) day="星期五";
if (x.getDay()==6) day="星期六";

var timer=""+((h>12) ? h-12 : h);
timer +=((m1<10) ? ":0 " : ":")+m1;
timer +=((s<10) ? ":0 " : ":" )+s;
timer += ""+((h >=12) ? "pm" : "am");
document.s1.b1.value=y;
document.s1.b2.value=m+1;
document.s1.b3.value=ds;
document.s1.b4.value=timer;
document.s1.b5.value=day;
setTimeout("show()",1000);
}
</script>
</head>

<body onload="show()">

<form name="s1" onSubmit="0">
今天<input type="text" name="b5" size="5">
<br><BR>
当前时间:<input type="text" name="b1" size="5">年
<input type="text" name="b2" size="5">月
<input type="text" name="b3" size="5">日
<input type="text" name="b4" size="15">

</form>

</body>
</html>

希望对楼主有用。