大约有 3,000 项符合查询结果(耗时:0.0208秒) [XML]

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App Inventor 2 实现商业级APP启动屏幕效果(SplashScreen) - App应用开发 -...

...局比较常规,右上角放一个按钮,用于显示倒计时和跳过文本,注意:按钮文本颜色设置为白色,背景颜色黑色透明(参考:#0000004a)。倒计时使用“传感器 -> 计时器”组件,设置计时间隔为1000ms,即1秒。代码逻辑:每隔1秒...
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Bad arguments to +:The operation + cannot accept the arguments:, [&qu...

... 比如"123"这个字符串可以自动转数字,但是空文本不行。 文本要判断空,然后给数字 0。 同理,空文本不但不能转数字,也不能转列表、字典等数据类型,否则都会发生异常,弹窗报错!
https://bbs.tsingfun.com/thread-1845-1-1.html 

App Inventor 2 做个计算器怎手机运行后报错 - App应用开发 - 清泛IT社区,为创新赋能!

...数学运算会转成 0 处理,因此就会出现除零异常。要先用文本块是否为空进行判断,如果为空则提示用户输入内容。也可将文本框的属性 仅数字 勾上,这样文本框只能接受数字的输入。
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为什么接收到的字符串数据都带括号了?如何处理? - App应用开发 - 清泛IT...

...调试软件接收到的也不带括号。 [hide]A:首先,如果文本输入出来多出了 中括号 [ 或 小括号 ( ,就考虑它不是文本类型,而是列表,尤其是列表中只有一个元素,打印出来就没有逗号分隔,仅前后多了中括号/小括号。 ...
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App Inventor 2 BaiduFanyi拓展:请求百度翻译WebAPI方式的拓展 · App Inventor 2 中文网

... 事件 成功事件:返回1个参数 translation文本 失败事件:返回1个参数error文本型 属性 属性描述:设置appid 属性描述:设置appkey 拓展下载 .aix 拓展下载: cn...
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Convert Unicode to ASCII without errors in Python

...nse, you'll get an error like or similar to this: UnicodeDecodeError: 'utf8' codec can't decode byte 0x8b in position 1: unexpected code byte In order to decode a gzpipped response you need to add the following modules (in Python 3): import gzip import io Note: In Python 2 you'd use StringI...
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Creating an empty file in C#

...revious .Net version? The file is not empty if I specify explicitly to use UTF8 encoding (or unicode or something else): <File.WriteAllText("c:\del.txt", String.Empty, System.Text.Encoding.UTF8);> – Fil Mar 8 '17 at 14:54 ...
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mysql check collation of a table

...ow is the charset, not the collation. Two tables may have the same charset utf8, but different collations utf8_general_ci vs utf8_unicode_ci. This can cause error messages like HY000, 1267, Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '='... which...
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require file as string

...ction (module, filename) { module.exports = fs.readFileSync(filename, 'utf8'); }; var words = require("./words.txt"); console.log(typeof words); // string Otherwise, you can mix fs.readFile with require.resolve: var fs = require('fs'); function readModuleFile(path, callback) { try { ...
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Get data from fs.readFile

... You have to include 'utf8' after the filename as an additional parameter, otherwise it will just return a buffer. See : stackoverflow.com/questions/9168737/… – DollarAkshay Feb 12 '19 at 11:01 ...