看看，，，，，，，，，，，，
:lol netlhx 发表于 2015-7-28 17:06
多谢，能否再解释一句
参考手册（compiler user guide）吧：
#pragma Ospace
ARM Compiler toolchain v4.1 for µVision Compiler Reference
Home > Compiler-specific Features > Pragmas > #pragma Ospace
#pragma Ospace
This pragma instructs the compiler to perform optimizations to reduce image size at the expense of a possible increase in execution time.
Usage
This pragma enables you to assign optimization goals to individual functions.
Restriction
The pragma must be placed outside the function.
#pragma Onum
ARM Compiler toolchain v4.1 for µVision Compiler Reference
Home > Compiler-specific Features > Pragmas > #pragma Onum
#pragma Onum
This pragma changes the optimization level.
Syntax
#pragma OnumWhere:
numis the new optimization level.
The value of num is 0, 1, 2 or 3.
Usage
This pragma enables you to assign optimization levels to individual functions.
Restriction
The pragma must be placed outside the function.
#pragma Otime
ARM Compiler toolchain v4.1 for µVision Compiler Reference
Home > Compiler-specific Features > Pragmas > #pragma Otime
#pragma Otime
This pragma instructs the compiler to perform optimizations to reduce execution time at the expense of a possible increase in image size.
Usage
This pragma enables you to assign optimization goals to individual functions.
Restriction
The pragma must be placed outside the function.
#pragma push
ARM Compiler toolchain v4.1 for µVision Compiler Reference
Home > Compiler-specific Features > Pragmas > #pragma push
#pragma push
This pragma saves the current pragma state.
#pragma pop
ARM Compiler toolchain v4.1 for µVision Compiler Reference
Home > Compiler-specific Features > Pragmas > #pragma pop
#pragma pop
This pragma restores the previously saved pragma state.
ctrl+C 效果那么差 :L:L:L Mandelbrot_Set 发表于 2015-7-28 17:13
参考手册（compiler user guide）吧：
#pragma Ospace
明白了，非常感谢啊 大家都在向高端发展了。 学习一下，，，
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