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重慶理工會計(jì)信息化課程課件ppt雙語之第3-2章編程基礎(chǔ)與常用控件技術(shù)(已修改)

2025-01-30 20:30 本頁面
 

【正文】 Accounting Information ? 熟悉逐步熟悉 PowerScript的基礎(chǔ)語法及語句 (Are familiar with the foundation to gradually familiar with the PowerScript syntax and statement) ? 掌握常見的窗口控件 ( Grasp the mon window control ) 學(xué)習(xí)目的與要求 Learning Objectives and Requirements 32 編程基礎(chǔ)與常用控件技術(shù) Programming with the Common Control Technology 教學(xué)內(nèi)容 (Teaching content) 32 編程基礎(chǔ)與常用控件技術(shù) Programming with the Common Control Technology 對象編程基礎(chǔ) (Objectbased programming) PowerScript語言 (PowerScript Language ) 窗口控件 (Window Control ) 常用函數(shù) (Common Functions ) 對象菜單 (Object Menu ) 對象編程基礎(chǔ) objectoriented programmingbased 腳本也稱為事件處理程序,是指動作發(fā)生時(shí)相應(yīng)執(zhí)行的一段程序The script is also known as the event handler refers to the action occurs, the corresponding period of the implementation of procedures for. 指作用在對象上的動作,當(dāng)事件觸發(fā)時(shí),執(zhí)行腳本。 Event refers to the role of the object movements, when the event is triggered, the implementation of the script. 對象 事件 腳本 表示單一的實(shí)體 (如窗口、按鈕等) 名字 屬性 方法 事件 ( Event) 函數(shù) ( Fuction) Object represents a single entity (such as windows, buttons, etc.) 對象編程基礎(chǔ) objectoriented programmingbased 例:按鈕對象 正文 寬度 高度 教學(xué)內(nèi)容 32 編程基礎(chǔ)與常用控件技術(shù) 對象編程基礎(chǔ) PowerScript語言 窗口控件 常用函數(shù) 對象菜單 PowerScript語言 注釋( //):行注釋和塊注釋 標(biāo)識符 大小寫 命令結(jié)束符(回車鍵) 行繼續(xù)符( amp。) 空值( null) 保留字 操作符 算術(shù)運(yùn)算符、關(guān)系運(yùn)算符、邏輯運(yùn)算符、字符串的連接 保留字供PowerBuilder內(nèi)部使用 語言基礎(chǔ) PowerScript語言 數(shù)據(jù)類型、變量和常量 Data types, variables and constants ( 1)標(biāo)準(zhǔn)數(shù)據(jù)類型 Standard data types integer或 int(整型),整數(shù)的取值范圍是從 32768到 32767 (integer or int (integer), integer values range from 32768 to 32767 ) boolean(布爾型),布爾變量有兩個值: true和false,分別表示真和假 (boolean (boolean type), Boolean variables are two values: true and false, true and false, respectively ) real(實(shí)型 ),實(shí)型變量被創(chuàng)建時(shí)的初始值是 0 (real (solid type), real variables are created when the initial value is 0 ) char或 character(字符型),該類型變量用于存儲一個 ASCII字符。 (char or character (character), the type of variable is used to store an ASCII character. ) date(日期型) ,日期包含年、月、日,年月日之間用連接符( )連接。 (date (date type), the date contains the year, month, day, date with the connection between the sign () connection. ) time(時(shí)間型) ,包含小時(shí)、分鐘、秒,小時(shí)、分鐘、秒之間用冒號(:)分隔 (time (time type), including hours, minutes, seconds, hours, minutes, seconds with a colon (:) separated) string(字符串型) ,字符串要用引號括起來 (string (string), string enclosed in quotation marks ) PowerScript語言 數(shù)據(jù)類型、變量和常量 ( 2)變量的聲明 (Variables Declaration ) 變量是指在程序運(yùn)行過程中其值可以改變的量。 (Variable refers to the program is running, the amount of its value can be changed. ) ?變量聲明的一般語法結(jié)構(gòu)是: 數(shù)據(jù)類型 標(biāo)識符 [=初值 ] [,標(biāo)識符 =[初值 ]][, … ] (The general structure of variable declaration syntax is: Data type identifier [= initial value] [, identifier = [initial]] [, ...] ) 變量未賦初值,系統(tǒng)會自動賦給變量默認(rèn)值。如:數(shù)值型變量的默認(rèn)初值是 0。 (Variable is not assigned the initial value, the system will be aut
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