您尚未登录,请登录后浏览更多内容！登录 | 立即注册

只需一步，快速开始

cncml手绘网»论坛 › 站长博文 › 学习笔记 › 循环语句

发新帖

查看: 10211|回复: 0

上一主题

下一主题

[Vue.js] 循环语句

电梯直达

跳转到指定楼层

楼主

发表于 2018-7-4 10:56:27 | 只看该作者回帖奖励

回帖奖励

|倒序浏览 |阅读模式

循环使用 v-for 指令。

v-for 指令需要以 site in sites 形式的特殊语法， sites 是源数据数组并且 site 是数组元素迭代的别名。

v-for 可以绑定数据到数组来渲染一个列表：

v-for 指令

<div id="app">8 y* R# S0 W5 B
<ol>4 o. G" M4 Q" _, z, @" C" w
<li v-for="site in sites">" G2 w) D) E5 S- q
{{ site.name }}& _& P' }1 ?+ [( D# z; P
</li>
* g5 M0 d. h" {; t- W7 B3 r: ]
</ol>
# {+ ]# Y0 O# G+ g
</div>
) S& r3 `; }2 I( C) _
. v% Y) \+ K" K1 ~: A2 }
<script>
" @3 Z" o( j* u5 ]
new Vue({- B! k6 J/ [% ?) o, H- g
el: '#app',
}! |: a z4 w8 R$ \, B* }
data: {- u" B5 P. c5 s6 S" [. R7 J* E; ?
sites: [
- p; j" w6 F0 N" M5 H
{ name: 'Runoob' },
& F+ M7 _: |: }9 I9 N# `
{ name: 'Google' },
" }' {( q( Q; D; P1 a$ q- W
{ name: 'Taobao' }) D( ?* [6 t; p. \2 x- {
]% j' V( J- M* C/ R5 M
}1 ?0 V! p$ A: }: p& S& L0 t
})
9 a* }/ K" q% x- @8 Q4 c
</script>

复制代码

模板中使用 v-for：

v-for

<ul>
, q8 k$ U. T# M& q
<template v-for="site in sites">, l! E3 d# X, \ P1 Y3 N" A- x
<li>{{ site.name }}</li>
; n2 V' d% J7 ]
<li>--------------</li>
1 X, q. p! Y, Z, s
</template>' O3 q- R$ C! m) A3 F
</ul>

复制代码

v-for 迭代对象

v-for 可以通过一个对象的属性来迭代数据：

v-for

<div><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"><</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">div</span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"> </span><span class="hl-var" style="border: 0px; color: rgb(0, 0, 139); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">id</span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">=</span><span class="hl-quotes" style="border: 0px; color: rgb(139, 0, 0); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">"</span><span class="hl-string" style="border: 0px; color: rgb(170, 17, 17); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">app</span><span class="hl-quotes" style="border: 0px; color: rgb(139, 0, 0); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">"</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">
9 \$ w/ Q8 B6 D/ m
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"><</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">ul</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">
. h6 p) d( D0 P6 J4 e) R& {0 |
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"><</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">li</span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"> </span><span class="hl-var" style="border: 0px; color: rgb(0, 0, 139); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">v-for</span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">=</span><span class="hl-quotes" style="border: 0px; color: rgb(139, 0, 0); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">"</span><span class="hl-string" style="border: 0px; color: rgb(170, 17, 17); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">value in object</span><span class="hl-quotes" style="border: 0px; color: rgb(139, 0, 0); font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">"</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">: J6 }: h, p1 B" G
{{ value }}
! \# h& c' V2 a" u- _: K: k
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"></</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">li</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">5 H0 O' y! n6 [0 K
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"></</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">ul</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">
% K) u. O% j" W$ g# W
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"></</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">div</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">' b5 M1 X1 d6 G. ]0 b/ a
V6 n& c; O# |; g- I/ S$ Y
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"><</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">script</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span><span class="hl-code" style="border: 0px; color: gray; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">
7 R) r9 i9 L& c
new Vue({7 A2 H/ ?; k& _" f9 P
el: '#app',1 \/ ^/ x* G4 s( ^3 n
data: {6 {, K7 I' a; p- \0 T
object: {% y6 y2 H2 z2 M2 O6 S
name: '菜鸟教程',
6 a- X- d N7 X+ E5 M
url: 'http://www.runoob.com',
/ B0 O6 d/ w ^
slogan: '学的不仅是技术，更是梦想！'* G4 @/ }; {/ L
}0 Y# m0 R; V9 g2 W
}
5 f; M. Y* P+ T+ {: O* S* \
})
e9 J5 O1 c& P1 ~% x" s' k
</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;"></</span><span class="hl-reserved" style="border: 0px; color: green; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">script</span><span class="hl-brackets" style="border: 0px; color: olive; font-family: Menlo, Monaco, Consolas, "Andale Mono", "lucida console", "Courier New", monospace; font-size: 13.2px; white-space: pre-wrap;">></span></div><div></div>

复制代码

你也可以提供第二个的参数为键名：

v-for

<div id="app">
7 B9 E+ \8 u2 ^5 j) c7 d
<ul>" l5 F) C5 i) A' R0 k
<li v-for="(value, key) in object">9 W( q- H# B0 w% [; {* L, E( U. _
{{ key }} : {{ value }}
5 o! X: X& g+ f. c, \; V" l
</li>+ W# `- C H+ X" X% k3 w2 I
</ul>
# q9 N7 L& `$ I# a1 p/ }( C
</div>

复制代码

第三个参数为索引：

v-for

<div id="app">+ C7 S0 h( z0 g3 s0 |1 l0 x& O) }
<ul>
# a& R: @7 T+ h8 s: `( }, q
<li v-for="(value, key, index) in object">4 r' b6 Z5 a! }+ A9 T& u/ P0 ^
{{ index }}. {{ key }} : {{ value }}: m6 P6 V$ f L8 \+ v- U0 c* _8 D
</li>, E1 z# c7 l( K. ~
</ul>
]/ \; w& j$ R
</div>

复制代码

v-for 迭代整数

v-for 也可以循环整数

v-for

<div id="app">
4 E% a) y$ b p8 F$ i# m6 s
<ul>; j6 ^1 Q2 M6 a) I; j+ f: [5 M
<li v-for="n in 10">
% a+ d/ _+ c" S0 l4 r
{{ n }}
4 b# d* l {+ `6 |5 D; |
</li>
, B- I* w; p9 |% u8 u* C
</ul> @% S9 N% D6 A) e
</div>

复制代码

分享到: QQ好友和群 QQ空间 腾讯微博 腾讯朋友

收藏0 分享 支持0 反对0

回复

使用道具举报

发新帖

|

|

|

|

备案信息代码：冀ICP备18019919号-1

GMT+8, 2026-4-30 19:55 , Processed in 0.062722 second(s), 19 queries .

Copyright © 2001-2026 Powered by cncml! X3.2. Theme By cncml!