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<\/p>\n

TypeScript \u7c7b\u578b\u4fdd\u62a4(type protection)<\/h1>\n

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TypeScript \u7684\u985e\u578b\u4fdd\u8b77\u529f\u80fd\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u548c\u63a7\u5236\u7a0b\u5f0f\u78bc\uff0c\u4e26\u6e1b\u5c11\u7a0b\u5f0f\u78bc\u51fa\u932f\u7684\u6a5f\u6703\u3002TypeScript \u7684\u985e\u578b\u4fdd\u8b77\u529f\u80fd\u53ef\u4ee5\u6aa2\u67e5\u7a0b\u5f0f\u78bc\u4e2d\u7684\u985e\u578b\u932f\u8aa4\uff0c\u4e26\u5728\u7de8\u8b6f\u6642\u671f\u63d0\u51fa\u8b66\u544a\uff0c\u4ee5\u4fbf\u958b\u767c\u8005\u53ef\u4ee5\u5728\u7de8\u8b6f\u6642\u671f\u5c31\u4fee\u6b63\u932f\u8aa4\u3002<\/p>\n

TypeScript \u7684\u985e\u578b\u4fdd\u8b77\u7bc4\u4f8b<\/h2>\n

\u4e0b\u9762\u662f\u4e00\u500b\u4f7f\u7528 TypeScript \u7684\u985e\u578b\u4fdd\u8b77\u529f\u80fd\u7684\u7bc4\u4f8b\uff1a<\/p>\n

\n\/\/ \u5b9a\u7fa9\u4e00\u500b\u51fd\u6578\uff0c\u63a5\u53d7\u4e00\u500b\u5b57\u4e32\u53c3\u6578\nfunction greet(name: string) {\n    console.log(\"Hello, \" + name);\n}\n\n\/\/ \u547c\u53eb\u51fd\u6578\uff0c\u50b3\u5165\u4e00\u500b\u6578\u5b57\ngreet(123);\n<\/pre>\n
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<\/p>\n
TypeScript \u7684\u985e\u578b\u4fdd\u8b77\u7684\u512a\u9ede<\/h2>\n
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\u7e3d\u7d50<\/h2>\n
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