编程语言 | 数字 -> 字符串 | 字符串 -> 数字 |
---|---|---|
C | char
buff[10]; int i; sprintf(buff,"%d",i); |
i = atoi(str) |
C++ | CString str; int i; str.Format("%d",i); |
i = atoi(str) |
VBScript | str = i & "" | i = CINT(str) |
JavaScript | var str = 123 + "" | var i =
parseInt("123) var f = parseFloat("1.23") |
Java | String s = String.valueOf(123) | int i = Integer.parseInt("123", 10) |
C# | int i;
i.ToString(); String.Format("{0:D4}", i); |
int i =
int.Parse("123"); int i; int.TryParse("123", out i); |
编程语言 | 数字 -> 字符 | 字符 -> 数字 |
---|---|---|
C | c = char(i) | i = c |
C++ | ||
VBScript | dim s s = 123 & "" |
dim i i = cint("123") |
JavaScript | var s = String.fromCharCode(97,98,99); // "abc" | var c = "a"; var i = c.charCodeAt(0); |
Java | char c = 97; // 'a' | int i = 'a'; // 97 |
编程语言 | 当前日期 | 日期 -> 字符 | 字符 -> 日期 |
---|---|---|---|
C | |||
C++ | |||
VBScript | Date, Date() Time, Time() NOW, NOW() |
||
JavaScript | new Date() | ||
Delphi | Date, Date() Time, Time() Now, Now() |
FormatDateTime('yyyy-mm-dd', Date) | |
Java | new Date() |
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); sdf.format(date); |
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); sdf.parse(string); |
oracle | sysdate | to_char(sysdate,'YYYY/MM/DD') | to_date('2007/7/7','YYYY/MM/DD') |
sql server | getdate() |