Easylanguage的字符串函数

类别	函数名称	功能描述	实例	备注
基本 运算	LowerStr("String")	把字符串全部变成小写	LowerStr("Return on Account");	="return on account"
	UpperStr("String")	把字符串全部变成大写	UpperStr("msft");	= "MSFT"
	LeftStr(String,sSize)	取字符串左边N位	LeftStr("Hello World",5);	= "Hello"
	RightStr(String,sSize)	取字符串右边N位	RightStr("Hello World",5);	= "World"
	MidStr("String",Pos,Num)	取字符串中间Num位 (从Pos位开始)	MidStr("Largest winning trade",1,7);	= "Largest"
	InStr(String1,String2)	取String2在String1中的位置。 没有则返回0	InStr("Friday is the expiration day", "Friday"); InStr("Friday is the expiration day", "Monday");	=1 =0
	StrLen("String")	获取字符串长度	StrLen("Drawdown");	=8
类型 转换	Text()	转变为字符串	Text(1234);	= "1234.00"
	NumToStr(Expression,Dec)	数字转为字符串	NumToStr(1500.5,3);	= "1500.500"
	El_DateStr(dd, MM, yyyy)	日期转为字符串	El_DateStr(02,04,2008);	= "20080402"
	StrToNum("String")	字符串转变为数字	StrToNum("2500.70");	= 2500.70
	StringToDate("MM/dd/yy") StringToDate("MM/dd/yyyy")	字符串转变为日期	StringToDate("01/01/2008"); StringToDate("04/04/99")	= 39448 = 36254
特殊字符	NewLine	换行符	FileAppend("c:\testfile.txt", "We can see a new line"+ NewLine+"isn’t it?");	We can see a new line isn’t it?