DEV C++中[Error] ‘nullptr’ was not declared in this scope

解决办法:
第一步:
点击 DEV C++中“Tools”;
DEV C++中[Error] 'nullptr' was not declared in this scope
第二步:
点击 Tools下Compiler Options;DEV C++中[Error] 'nullptr' was not declared in this scope
第三步 点击Settings;
DEV C++中[Error] 'nullptr' was not declared in this scope
第四步 点击Code Generation;
DEV C++中[Error] 'nullptr' was not declared in this scope第五步 在Language standard中选择ISO C++ 11,错误解除,执行完毕。
DEV C++中[Error] 'nullptr' was not declared in this scope

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