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#import <Foundation/Foundation.h>
#import "Calculator.h"
#import "ctype.h"
int main(int argc, const char * argv[])
{
double value1,value2;
char operator;
Calculator *myCal =[[Calculator alloc]init ];
NSLog(@"Type in your expression");
scanf("%1f %c %1f",&value1,&operator,&value2);
[myCal setAccumulator:value1];
if (operator =='+')
[myCal add:value2];
else if (operator == '-')
[myCal subtract:value2];
else if (operator == '*')
[myCal multiply:value2];
else if (operator == '/')
[myCal divide:value2];
NSLog(@"%.2f",[myCal accumulator]);
}
return 0;
}
我無法找到關於此代碼的任何錯誤,我從書中鍵入代碼,代碼與書上相同。但Xcode的告訴我,他們有兩個錯誤,第一個是「應爲標識符或‘(’ 第二個是‘預期的外部聲明’objective-c代碼錯誤
是一個控制檯應用程序 – 2012-07-26 09:52:55